D. Defrere, O. Absil, C. Hanot, P. Riaud, A. Magette, L. Marion, O. Wertz et al. "Observing the Sun with micro-interferometric devices: a didactic experiment." In Improving the Performances of Current Optical Interferometers & Future Designs. Edited by J. Surdej, H. Le Coroller, and L. Arnold. 2014. 87-92.
Y. Tsapras, J.-Y. Choi, R. A. Street, C. Han, V. Bozza, A. Gould, M. Dominik et al. "A Super-Jupiter orbiting a late-type star: A refined analysis of microlensing event OGLE-2012-BLG-0406." Astrophysical Journal 782 (February 2014): 48.
Peer reviewed (verified by ORBi)
O. Wertz and J. Surdej. "Use of the Fourier transform to derive the gravitational lens deflection angle." Monthly Notices of the Royal Astronomical Society 437 (November 26, 2013): 1051-1055.
Peer reviewed (verified by ORBi)
J.-Y. Choi, C. Han, A. Udalski, T. Sumi, B. S. Gaudi, A. Gould, D. P. Bennett et al. "Microlensing Discovery of a Population of Very Tight, Very Low Mass Binary Brown Dwarfs." Astrophysical Journal 768 (May 1, 2013): 129.
Peer reviewed (verified by ORBi)
N. Kains, R. A. Street, J.-Y. Choi, C. Han, A. Udalski, L. A. Almeida, F. Jablonski et al. "A giant planet beyond the snow line in microlensing event OGLE-2011-BLG-0251." Astronomy and Astrophysics 552 (April 1, 2013): 70.
Peer reviewed
T. Akhunov, A. Elyiv, B. P. Artamonov, V. N. Dudinov, S. N. Nuritdinov, R. Gaisin, C. Delvaux et al. "Adaptive PSF fitting - a new photometric method and light curves of the GLS H1413+177 Clover Leaf: time delays and micro-lensing effects." Monthly Notices of the Royal Astronomical Society (2013).
Peer reviewed (verified by ORBi)
I.-G. Shin, C. Han, A. Gould, A. Udalski, T. Sumi, M. Dominik, J.-P. Beaulieu et al. "Microlensing Binaries with Candidate Brown Dwarf Companions." Astrophysical Journal 760 (December 1, 2012): 116.
Peer reviewed (verified by ORBi)
J.-Y. Choi, I.-G. Shin, C. Han, A. Udalski, T. Sumi, A. Gould, V. Bozza et al. "A New Type of Ambiguity in the Planet and Binary Interpretations of Central Perturbations of High-magnification Gravitational Microlensing Events." Astrophysical Journal 756 (September 1, 2012): 48.
Peer reviewed (verified by ORBi)
V. Bozza, M. Dominik, N. J. Rattenbury, U. G. Jørgensen, Y. Tsapras, D. M. Bramich, A. Udalski et al. "OGLE-2008-BLG-510: first automated real-time detection of a weak microlensing anomaly - brown dwarf or stellar binary?" Monthly Notices of the Royal Astronomical Society 424 (August 1, 2012): 902-918.
Peer reviewed (verified by ORBi)
I.-G. Shin, C. Han, J.-Y. Choi, A. Udalski, T. Sumi, A. Gould, V. Bozza et al. "Characterizing Low-mass Binaries from Observation of Long-timescale Caustic-crossing Gravitational Microlensing Events." Astrophysical Journal 755 (August 1, 2012): 91.
Peer reviewed (verified by ORBi)
F. Finet, A. Elyiv, O. Melnyk, and J. Surdej. "Theoretical incidence of gravitational lensing effects (AGN) in the XXL field." In Proceedings of the XXL Consortium meeting in the Castle of the Meudon observatory, from 9 to 13 July, 2012. 2012.
E. Bachelet, I.-G. Shin, C. Han, P. Fouqué, A. Gould, J. W. Menzies, J.-P. Beaulieu et al. "MOA 2010-BLG-477Lb: Constraining the Mass of a Microlensing Planet from Microlensing Parallax, Orbital Motion, and Detection of Blended Light." Astrophysical Journal 754 (July 1, 2012): 73.
Peer reviewed (verified by ORBi)
O. Wertz, V. Pelgrims, and J. Surdej. "Asymptotic solutions for the case of nearly symmetric gravitational lens systems." Monthly Notices of the Royal Astronomical Society 424 (May 21, 2012): 1543-1555.
Peer reviewed (verified by ORBi)
J.-Y. Choi, I.-G. Shin, S.-Y. Park, C. Han, A. Gould, T. Sumi, A. Udalski et al. "Characterizing Lenses and Lensed Stars of High-magnification Single-lens Gravitational Microlensing Events with Lenses Passing over Source Stars." Astrophysical Journal 751 (May 1, 2012): 41.
Peer reviewed (verified by ORBi)
I.-G. Shin, J.-Y. Choi, S.-Y. Park, C. Han, A. Gould, T. Sumi, A. Udalski et al. "Microlensing Binaries Discovered through High-magnification Channel." Astrophysical Journal 746 (February 1, 2012): 127.
Peer reviewed (verified by ORBi)
J. Surdej. "Lentilles gravitationnelles, Cours No 3: Astrophysique et Techniques Spatiales: Ingés aéro/Ingés Phys 2011-2012 (Fichiers pdf + vidéos: mov, avi, m4v)." ASTR0004-2. 2011.
J. Surdej. "Lentilles gravitationnelles, Cours No 2: Astrophysique et Techniques Spatiales: Ingés aéro/ Ingés Phys 2011-2012 (Fichier PDF + vidéos: mov, avi, m4v)." ASTR0004-2. 2011.
J. Surdej. "Lentilles gravitationnelles, Cours No 1: Astrophysique et Techniques Spatiales: Ingés aéro/ Ingés Phys 2011-2012 (Fichier PDF + vidéos: mov, m4v)." ASTR0004-2. 2011.
D. Ricci, J. Poels, A. Elyiv, F. Finet, P.-G. Sprimont, T. Anguita, V. Bozza et al. "HE 0435-1223 lensed QSO VRi light curves (Ricci+, 2011)." 2011.
A. Gould, S. Dong, B. S. Gaudi, A. Udalski, I. A. Bond, J. Greenhill, R. A. Street et al. "Frequency of Solar-like Systems and of Ice and Gas Giants Beyond the Snow Line from High-magnification Microlensing Events in 2005-2008." Astrophysical Journal 720 (September 1, 2010): 1073-1089.
Peer reviewed (verified by ORBi)
P. Fouqué, D. Heyrovský, S. Dong, A. Gould, A. Udalski, M. D. Albrow, V. Batista et al. "OGLE 2008-BLG-290: an accurate measurement of the limb darkening of a galactic bulge K Giant spatially resolved by microlensing." Astronomy and Astrophysics 518 (July 1, 2010): 511-5112.
Peer reviewed (verified by ORBi)
J. Surdej, C. Delacroix, P. Coleman, M. Dominik, S. Habraken, C. Hanot, H. Le Coroller et al. "The Optimal Gravitational Lens Telescope." Astronomical Journal (The) 139 (April 8, 2010): 1935-1941.
Peer reviewed (verified by ORBi)
J.-F. Claeskens, D. Sluse, and J. Surdej. "HST Observations of Gravitationally Lensed QSOs." In The Impact of HST on European Astronomy. Edited by D. F. Macchetto. Astrophysics and Space Science Proceedings, 2010, Part 3, 191-195. 2010. 191-195.
M. Dominik, U. G. Jørgensen, N. J. Rattenbury, M. Mathiasen, T. C. Hinse, S. Calchi Novati, K. Harpsøe et al. "Realisation of a fully-deterministic microlensing observing strategy for inferring planet populations." Astronomische Nachrichten 331 (2010): 671-691.
Peer reviewed (verified by ORBi)
J. Surdej, J.-F. Claeskens, C. Delacroix, T. Sadibekova, P. Bartczak, P. H. I. Coleman, A. Magette, J. Poels, D. Ricci, and D. Sluse. "Gravitational Lensing, Dark Matter and the Optical Gravitational Lens Experiment." In American Institute of Physics Conference Proc. Volume 1038. Edited by N. Matagne, J. Cugnon, and J.-P. Lansberg. AIP Conference Proceedings, Volume 1038. 2008. 173-182.
J.-F. Claeskens, D. Sluse, and J. Surdej. "HST observations of gravitationally lensed QSOs." In proceedings of the 41st ESLAB Symposium "The Impact of HST on European Astronomy" (June 2007). Astrophysics and Space Science Proceedings series edited by Springer, 2008.
D. Sluse, J.-F. Claeskens, D. Hutsemekers, and J. Surdej. "Microlensing probes the AGN structure of the lensed quasar J1131-1231." In Revista Mexicana de Astronomia y Astrofisica (Serie de Conferencias) Vol. 32. Edited by E. Benítez, I. Cruz-González, and Y. Krongold. Revista Mexicana de Astronomía y Astrofísica (Serie de Conferencias) Vol. 32. 2008. 83-85.
D. Sluse, A. Eigenbrod, F. Courbin, D. Hutsemekers, J.-F. Claeskens, G. Meylan, E. Agol, and J. Surdej. "Microlensing to probe the quasar structure: spectrophotometry of Q2237+0305 and of J1131-1231." In Proceedings of the Manchester Microlensing Conference: The 12th International Conference and ANGLES Microlensing Workshop. Proceedings of Science, PoS (GMC8)020. Edited by E. Kerins, S. Mao, N. Rattenbury, and L. Wyrzykowski. 2008. 1-8.
D. Sluse, J.-F. Claeskens, D. Hutsemekers, and J. Surdej. "Multi-wavelength study of the gravitational lens system RXS J1131-1231 - III. Long slit spectroscopy: micro-lensing probes the QSO structure." Astronomy and Astrophysics 468, no. 3 (June 2007): 885-901.
Peer reviewed (verified by ORBi)
J. Surdej and A. Pospieszalska-Surdej. "Gravitational lens simulator : a didactical experiment." 2007.
J.-F. Claeskens, D. Sluse, P. Riaud, and J. Surdej. "Multi wavelength study of the gravitational lens system RXS J1131-1231 - II. Lens model and source reconstruction." Astronomy and Astrophysics 451, no. 3 (June 2006): 865-879.
Peer reviewed (verified by ORBi)
D. Sluse, J.-F. Claeskens, B. Altieri, R. A. Cabanac, O. Garcet, D. Hutsemekers, C. Jean, A. Smette, and J. Surdej. "Multi-wavelength study of the gravitational lens system RXS J113155.4-123155. I. Multi-epoch optical and near infrared imaging." Astronomy and Astrophysics 449 (April 1, 2006): 539-550.
Peer reviewed (verified by ORBi)
J. Surdej, J.-F. Claeskens, and D. Sluse. "Invited paper (Collège de France) Gravitational lensing and anomalous redshifts." In Current Issues in Cosmology. Edited by J.-C. Pecker and J. Narlikar. Cambridge, UK: Cambridge University Press, 2006. 223-233.
T. Nakos, F. Courbin, J. Poels, C. Libbrecht, P. Magain, J. Surdej, J. Manfroid et al. "Photometric monitoring of the doubly imaged quasar UM 673: possible evidence for chromatic microlensing." Astronomy and Astrophysics 441 (October 1, 2005): 443-450.
Peer reviewed (verified by ORBi)
O. Moreau, C. Libbrecht, D. W. Lee, and J. Surdej. "Accurate photometric light curves of the lensed components of Q2237+0305 derived with an optimal image subtraction technique: Evidence for microlensing in image A." Astronomy and Astrophysics 436, no. 2 (June 2005): 479-492.
Peer reviewed (verified by ORBi)
J.-F. Claeskens, D. Sluse, P. Riaud, and J. Surdej. "RXS J1131-1231: a lensed host galaxy at z = 0.66." In Proceedings of the Joint European and National Astronomy Meeting (http://www.astro.ulg.ac.be/RPub/Colloques/JENAM/proceedings/proceedings.html). 2005.
J. Surdej. "Gravitational lensing, rapport invité." Paper presented at Congrès Général de la Société Générale de Physique et de la Belgian Physical Society. Lille, France, 2005.
D. Alcalde, E. Mediavilla, O. Moreau, J. A. Munoz, C. Libbrecht, L. J. Goicoechea, J. Surdej et al. "QSO 2237+0305 VR light curves from Gravitational Lenses International Time Project optical monitoring." Astrophysical Journal 572, 2, Part 1 (June 20, 2002): 729-734.
Peer reviewed (verified by ORBi)
S. V. Khmil and J. Surdej. "Optimal extraction of multiple overlapping spectra using a maximum entropy algorithm." Astronomy and Astrophysics 387, no. 1 (May 2002): 347-355.
Peer reviewed (verified by ORBi)
J.-F. Claeskens and J. Surdej. "Gravitational lensing in quasar samples." Astronomy and Astrophysics Review 10, no. 4 (March 2002): 263-311.
Peer reviewed (verified by ORBi)
J. Surdej, J.-F. Claeskens, and A. Smette. "A complete sample of gravitationally lensed quasars to be detected with GAIA." "Relativity and Reference Frame" Gaia WG meeting at IAGL(Liège, Belgium) at 14-15/11/2002. 2002.
C. Jean, J.-F. Claeskens, and J. Surdej. "Gravitational lensing studies with the 4-m International Liquid Mirror Telescope (ILMT) (poster contribution)." In Proceedings of the Conference "Gravitational lensing: recent progress and future goals". Astron. Soc. of the Pac. Conf. Series 237. ArXiv Astrophysics e-prints, 2001. 423-424.
J.-F. Claeskens, C. Jean, and J. Surdej. "Microlensing observations with the 4-m International Liquid Mirror Telescope." In The proceedings of the Conference “Microlensing 2000: A New Era of Microlensing Astrophysics”. ASP Conference Series, Vol. 239. 2001. 373-377.
J.-F. Claeskens, S. V. Khmil, D. W. Lee, D. Sluse, and J. Surdej. "HST and ground-based observations of the gravitational lens system Q1009-0252 A & B." Astronomy and Astrophysics 367 (2001): 748-758.
Peer reviewed (verified by ORBi)
S. Dib, J.-F. Claeskens, and J. Surdej. "Determination of the mass of nearby stars from astrometric microlensing observations." In Proceedings of the LIAC “From optical to millimetric interferometry, scientific and technological challenges”. Edited by J. Surdej, J.-P. Swings, D. Caro, and A. Detal. Liege International Astrophysical Colloquia. 2001. 151-155.
A. Pospieszalska-Surdej, J. Surdej, A. Detal, and C. Jean. "The GL bibliography and an interactive database (Poster contribution)." In Proceedings of the Conference "Gravitational lensing: recent progress and future goals". Edited by T. G. Brainerd and C. S. Kochanek. Astron. Soc. of the Pac. Conf. Series 237. 2001. 55-56.
E. Puga, D. Alcalde, R. Barrena, E. Mediavilla, V. Motta, J. A. Muñoz, A. Oscoz et al. "Daily monitoring of the gravitational lens QSO 2237+0305 at the Nordic Optical Telescope." In Highlights of Spanish astrophysics II. Edited by J. Gorgas, J. Zamorano, and J. Gallego. Proceedings of the 4th Scientific Meeting of the Spanish Astronomical Society (SEA), held in , , : , 2001 xxii, 409. Dordrecht, Germany: Kluwer Academic Publishers, 2001. 53.
J. Surdej and J.-F. Claeskens. "Gravitational lensing." In The Century of Space Science, Volume I. Edited by J. A. Bleeker, J. Geiss, and M. Huber. The Century of Space Science, Volume I. Dordrecht, Netherlans: Kluwer Academic Publisher, 2001. 441-469.
J. Surdej, J.-F. Claeskens, C. Jean, D. W. Lee, A. Pospieszalska-Surdej, M. Remy, D. Sluse, A. Smette, and J.-P. Swings. "The relevance of HST observations for studies of quasars, gravitational lenses and intervening gas clouds "." In Space Sciences, Vol. II, Part 1: Space Scientific Research in Belgium. Belgium: Federal Office for Scientific, Technical and Cultural Affairs, 2001. 95-104.
J. Surdej and A. Surdej. "Les mirages gravitationnels (IV)." Ciel (Le) 63 (2001): 21-26.
E. van Dessel, D. Sinachopoulos, T. Nakos, and J. Surdej. "'The ILMT (International Liquid Mirror Telescope) and monitoring of gravitational lenses'." In Proceedings of the SAMOS conference (Greece). 2001.
S. V. Khmil and J. Surdej. "Optimal extraction of multiple overlapping spectra: a new algorithm based on the maximum entropy method." Kinematika i Fizika Nebesnykh Tel Supplement 3 (September 1, 2000): 178-181.
Peer reviewed
J.-F. Claeskens, D.-W. Lee, M. Remy, D. Sluse, and J. Surdej. "QSO mass constraints from gravitational lensing studies of quasar pairs. The cases of Q1548+114 A & B and Q1148+0055 A & B." Astronomy and Astrophysics 356 (2000): 840-848.
Peer reviewed (verified by ORBi)
V. Le Brun, A. Smette, J. Surdej, and J.-F. Claeskens. "Lensing properties of 7 damped Lyalpha absorbing galaxy-QSO pairs." Astronomy and Astrophysics 363 (2000): 837-842.
Peer reviewed (verified by ORBi)
J. Surdej and A. Surdej. "Les mirages gravitationnels (II)." Ciel (Le) 62 (2000): 282-286.
J. Surdej and A. Surdej. "Les mirages gravitationnels (III)." Ciel (Le) 62 (2000): 311-318.
J. Surdej and A. Surdej. "Les mirages gravitationnels." Ciel (Le) 62 (2000): 199-201.
C. Jean, J.-F. Claeskens, and J. Surdej. "Gravitational lensing studies with the 4-m International Liquid Mirror Telescope (ILMT)." Paper presented at "Gravitational Lensing: Recent Progress and Future Goals". Boston, USA, October 1, 1999.
A. Smette, J.-F. Claeskens, and J. Surdej. "Gravitational Lensing by Damped LY alpha Absorbers." In Highly Redshifted Radio Lines, ASP Conf. Series Vol. 156. ASP Conf. Series Vol. 156. 1999. 147-151.
J. Surdej. "Gravitational Lensing by a Wine Glass." The Universe in the Classroom 46, Second Quarter (1999): 5.
Peer reviewed
C. Jean and J. Surdej. "Redshift estimate of a gravitational lens from the observed reddening of a multiply imaged quasar." Astronomy and Astrophysics 339 (1998): 729-736.
Peer reviewed (verified by ORBi)
M. Remy, J.-F. Claeskens, J. Surdej, J. Hjorth, S. Refsdal, O. Wucknitz, A. N. Sorensen, and F. Grundahl. "Detection of the lensing galaxy for the double QSO HE 1104-1805." New Astronomy 3 (1998): 379-390.
Peer reviewed (verified by ORBi)
J. Surdej and J.-F. Claeskens. "Gravitational lens studies with a LMT." In Proceedings of the International workshop “Science with Liquid Mirror Telescopes”. Edited by M. Ferrari. 1998. 1-8.
J. Surdej, J.-F. Claeskens, M. Remy, S. Refsdal, B. Pirenne, A. Prieto, and C. Vanderriest. "HST confirmation of the lensed quasar J03.13." Astronomy and Astrophysics 327 (November 1997): 1-4.
Peer reviewed (verified by ORBi)
M. Remy, J.-F. Claeskens, and J. Surdej. "HST observations of the gravitational lens systems HE 1104-1805 and J03.13." In The 1997 HST Calibration Workshop with a New Generation of Instruments. Edited by S. Casertano. 1997. 368-373.
A. Smette, J.-F. Claeskens, and J. Surdej. "Damped LYalpha Absorbers and Gravitational Lensing." In Structure and Evolution of the Intergalactic Medium from QSO Absorption Line System, Proceedings of the 13th IAP Astrophysics Colloquium. Paris, France: Editions Frontieres, 1997. 313-316.
A. Smette, J.-F. Claeskens, and J. Surdej. "Gravitational lensing by damped Ly-alpha absorbers." New Astronomy 2 (1997): 53-76.
Peer reviewed (verified by ORBi)
J.-F. Claeskens, J. Surdej, and M. Remy. "J03.13 A and B: a new multiply imaged QSO candidate." Astronomy and Astrophysics 305 (January 1996): 9-12.
Peer reviewed (verified by ORBi)
J.-F. Claeskens, A. O. Jaunsen, and J. Surdej. "Gravitational Lenses Among Highly Luminous Quasars: Large Optical Surveys." In Astrophysical applications of gravitational lensing: proceedings of the 173rd Symposium of the International Astronomical Union. Edited by C. S. Kochanek and J. N. Hewitt. 173 IAU Symposia. Dordrecht, Germany: Kluwer Academic Publishers, 1996. 13-20.
Peer reviewed
J.-F. Claeskens and J. Surdej. "Determination of the Cosmological Density of Compact Objects using Gravitational Lensing and the HST." In Science with the Hubble Space Telescope - II. Edited by P. Benvenuti, F. D. Macchetto, and E. J. Schreier. Baltimore, MD, USA: Space Telescope Science Institute (STScI), 1996. 96-100.
J.-F. Claeskens, J. Surdej, and M. Remy. "J03.13 AB: A New Multiply Imaged QSO Candidate." In Astrophysical applications of gravitational lensing: proceedings of the 173rd Symposium of the International Astronomical Union. Edited by C. S. Kochanek and J. N. Hewitt. 173 IAU Symposia. Dordrecht, Germany: Kluwer Academic Publishers, 1996. 337-338.
A. Pospieszalska-Surdej, J. Surdej, and P. Veron. "The 'Gravitational Lensing' Bibliography." In Astrophysical applications of gravitational lensing, Proceedings of the 173rd Symposium of the International Astronomical Union. Edited by C. S. Kochanek and J. N. Hewitt. 173 IAU Symposia. Dordrecht, Germany: Kluwer Academic Publisher, 1996. 415-416.
M. Remy, E. Gosset, D. Hutsemekers, B. Revenaz, and J. Surdej. "The Clover Leaf Quasar H1413+117: New Photometric Light Curves." In Astrophysical applications of gravitational lensing: proceedings of the 173rd Symposium of the International Astronomical Union. Edited by C. S. Kochanek and J. N. Hewitt. 173 IAU Symposia. Dordrecht, Germany: Kluwer Academic Publishers, 1996. 261-262.
A. Smette, J.-F. Claeskens, and J. Surdej. "Gravitational Lenses and Damped Ly-alpha Systems." In Astrophysical applications of gravitational lensing: proceedings of the 173rd Symposium of the International Astronomical Union. Edited by J. N. Hewitt. 173 IAU Symposia. Dordrecht, Germany: Kluwer Academic Publishers, 1996. 99-100.
J. Surdej, A. O. Jaunsen, J.-F. Claeskens, S. Gonzaga, A. Pospieszalska-Surdej, B. Pirenne, and A. Prieto. "Ground-based and HST Direct Imaging of HLQs." In Astrophysical Applications of Gravitational Lensing. Edited by C. Kochanek and J. Hewitt. IAU Symposium 173. Dordrecht, Germany: Kluwer Academic Publishers, 1996. 387-392.
J. Surdej, S. Refsdal, and A. Pospieszalska-Surdej. "Formation of Giant Luminous Arcs and Arclets Using an Optical Gravitational Lens Experiment." In Astrophysical applications of gravitational lensing, Proceedings of the 173rd Symposium of the International Astronomical Union. Edited by C. S. Kochanek and J. N. Hewitt. 173 IAU Symposia. Dordrecht, Germany: Kluwer Academic Publisher, 1996. 417-418.
Peer reviewed
D. Hutsemekers, J. Surdej, and E. van Drom. "The use of gravitational microlensing to scan the structure of BAL QSOs." Astrophysics & Space Science 216 (June 1, 1994): 361-365.
Peer reviewed (verified by ORBi)
S. Refsdal and J. Surdej. "Gravitational lenses." Reports on Progress in Physics 57 (1994): 117-185.
Peer reviewed (verified by ORBi)
J. Surdej and S. Refsdal. "Gravitational Lensing as a Tool: Future Observational Prospects." In Frontiers of Space and Ground-Based Astronomy. Edited by W. Wamsteker, M. S. Longair, and Y. Kondo. Astrophysics and Space Science Library, Vol. 187. Dordrecht, Boston, USA: Kluwer Academic Publishers, 1994. 409-419.
Peer reviewed
J. Surdej and G. Soucail. "Lists of accepted and proposed gravitational lens systems." In Liege International Astrophysical Colloquia. Edited by J. Surdej. Liege, Belgium: Universite de Liege, Institut d'Astrophysique, 1993. 205-217.
J. Surdej, J.-F. Claeskens, D. Crampton, A. V. Filippenko, D. Hutsemekers, P. Magain, B. Pirenne, C. Vanderriest, and H. K. C. Yee. "Gravitational lensing statistics based on a large sample of highly luminous quasars." Astronomical Journal (The) 105 (June 1993): 2064-2078.
Peer reviewed (verified by ORBi)
P. Magain, J. Surdej, C. Vanderriest, B. Pirenne, and D. Hutsemekers. "Erratum - Q:1208+1011 - the Most Distant Multiply Imaged Quasar or a Binary." Astronomy and Astrophysics 272 (May 1, 1993): 383.
Peer reviewed (verified by ORBi)
P. Arnould, M. Remy, E. Gosset, O. Hainaut, D. Hutsemekers, P. Magain, A. Smette, J. Surdej, and E. van Drom. "The cloverleaf quasar H1413+117: a preliminary light curve." In The proceedings of the 31st Liège International Astrophysical Colloquium "Gravitational lenses in the Universe". Edited by J. Surdej, D. Fraipont-Caro, E. Gosset, S. Refsdal, and M. Remy. 31st Liège International Astrophysical Colloquium (LIAC 93). Liège, Belgium: Université de Liège, 1993. 169-173.
J.-F. Claeskens, D. Crampton, A. V. Filippenko, D. Hutsemekers, P. Magain, B. Pirenne, J. Surdej, C. Vanderriest, and H. K. C. Yee. "Search for gravitational lenses in a large sample of highly luminous quasars and statistical determination of cosmological parameters." In The proceedings of the 31st Liège International Astrophysical Colloquium "Gravitational lenses in the Universe". Edited by J. Surdej, D. Fraipont-Caro, E. Gosset, S. Resdal, and M. Remy. 31st Liège International Astrophysical Colloquium (LIAC 93). Liège, Belgium: Université de Liège, 1993. 263-265.
G. Daulie, O. Hainaut, D. Hutsemekers, P. Magain, M. Remy, A. Smette, J. Surdej, and E. van Drom. "The relative photometric lightcurve of UM673 A&B." In The proceedings of the 31st Liège International Astrophysical Colloquium "Gravitational lenses in. Edited by J. Surdej, D. Fraipont-Caro, E. Gosset, S. Refsdal, and M. Remy. 31st Liège International Astrophysical Colloquium (LIAC 93). Liège, Belgium: Université de Liège, 1993. 181-183.
D. Hutsemekers, J. Surdej, and E. van Drom. "Can micro-lensing effects help to distinguish between the models for the BAL region of QSOs?" In Liege International Astrophysical Colloquia, Gravitational Lenses in the Universe. Edited by D. Fraipont-Caro, E. Gosset, S. Refsdal, and M. Remy. Liege International Astrophysical Colloquium (LIAC 31). Liege, Belgium: Universite de Liege, 1993. 453.
O. Moreau, J.-F. Claeskens, E. Gosset, H. Reboul, and J. Surdej. "Systematic search for gravitational mirages among general quasar samples." In The proceedings of the 31st Liège International Astrophysical Colloquium "Gravitational lenses in. Edited by J. Surdej, D. Fraipont-Caro, E. Gosset, S. Refsdal, and M. Remy. 31st Liège International Astrophysical Colloquium (LIAC 93). Liège, Belgium: Université de Liège, 1993. 189-192.
A. Pospieszalska-Surdej, J. Surdej, and P. Véron. "A non exhaustive bibliography on gravitational lensing." In The proceedings of the 31st Liège International Astrophysical Colloquium "Gravitational lenses in the Universe". Edited by J. Surdej, D. Fraipont-Caro, E. Gosset, S. Refsdal, and M. Remy. 31st Liège International Astrophysical Colloquium (LIAC 93). Liège, Belgium: Université de Liège, 1993. 671-736.
M. Remy, J. Surdej, A. Smette, and J.-F. Claeskens. "Optical imaging of gravitational lenses B1422+231." In Liege International Astrophysical Colloquia,Gravitational Lenses in the Universe. Liege International Astrophysical Colloquium (LIAC 31). Liege, Belgium: Universite de Liege, 1993. 193.
Remy, J. Surdej, A. Smette, and J.-F. Claeskens. "Optical imaging of the gravitational lens system B 1422+231." Astronomy and Astrophysics 278 (1993): 19-22.
Peer reviewed (verified by ORBi)
J. Surdej. "Gravitational lensing as a tool: future observational prospects." Paper presented at Invited talk: Second general meeting of the European Astronomical Society "Extragalactic astronomy and observational cosmology". Torun, Poland, 1993.
J. Surdej. "Invited talk "Observing gravitational lenses"." Paper presented at 2nd Oslo mini-workshop on "Gravitational lenses", Oslo (Norway). Oslo, Norway, 1993.
J. Surdej, D. Fraipont-Caro, E. Gosset, S. Refsdal, and M. Remy. 'Gravitational lenses in the Universe', The proceedings of the 31st Liège International Astrophysical Colloquium. 31st Liège International Astrophysical Colloquium (LIAC 93). Liège, Belgium: Université de Liège, 1993.
J. Surdej, S. Refsdal, and A. Pospieszalska-Surdej. "The optical gravitational lens experiment." In Proceedings of the 31st Liege International Astrophysical Colloquium (LIAC 93). Edited by J. Surdej, D. Fraipont-Caro, E. Gosset, S. Refsdal, and M. Remy. LIAC. Liege, Belgium: Universite de Liege, Institut d'Astrophysique, 1993. 199.
J. Surdej, M. Remy, A. Smette, J.-F. Claeskens, P. Magain, S. Refsdal, J.-P. Swings, and M. Veron-Cetty. "Two new very close pairs of quasars with discordant redshifts and a gravitational lens candidate." In Gravitational Lenses in the Universe. Liège, Belgium: Université de Liège, 1993. 153-160.
J. Surdej and G. Soucail. "List of accepted and proposed gravitational lens systems." In The proceedings of the 31st Liège International Astrophysical Colloquium "Gravitational lenses in the Universe". Edited by J. Surdej, D. Fraipont-Caro, E. Gosset, S. Refsdal, and M. Remy. 31st Liège International Astrophysical Colloquium (LIAC 93). Liège, Belgium: Université de Liège, 1993. 205-216.
E. van Drom, J. Surdej, P. Magain, D. Hutsemekers, E. Gosset, J.-F. Claeskens, P. Shaver, and J. Melnick. "Galaxies statistics around highly luminous quasars: the ESO Sample." In The proceedings of the 31st Liège International Astrophysical Colloquium "Gravitational lenses in the Universe". Edited by J. Surdej, D. Fraipont-Caro, E. Gosset, S. Refsdal, and M. Remy. 31st Liège International Astrophysical Colloquium (LIAC 93). Liège, Belgium: Université de Liège, 1993. 301-306.
J. Surdej, M. C. Angonin, J. Arnaud, T. Bauer, U. Borgeest, O. Hainaut, F. Hammer et al. "ESO key programme, gravitational lensing: quasars and radio galaxies; a status report." In Distribution of Matter in the Universe. Paris, France: Meudon: Obs. de Paris, 1992. 97-107.
P. Magain, J. Surdej, C. Vanderriest, B. Pirenne, and D. Hutsemekers. "The new gravitational lens candidate Q 1208+1011 and the importance of high quality data." The Messenger 67 (March 1992): 30-33.
D. Hutsemekers, J. Surdej, and E. Vandrom. "Deformation of P Cygni line profiles by gravitational microlensing effects." In Gravitational Lenses, Lecture Notes in Physics, volume 406. Lecture Notes in Physics. Berlin: Springer-Verlag, 1992. 373.
P. Magain, D. Hutsemekers, J. Surdej, and E. Vandrom. "Search for gravitational lensing in a sample of highly luminous quasars." In Proceedings of the Hamburg conference on ’Gravitational Lenses’, Lecture Notes in Physics 406. Edited by R. Kayser, T. Schramm, and L. Nieser. Gravitational Lenses, Lecture Notes in Physics, volume 406. Berlin Heidelberg, Germany: Springer-Verlag, 1992. 88-96.
G. Meylan, S. Djorgovski, J. Surdej, B. Pirenne, W. N. Weir, and S. Beaulieu. "A Search for Gravitational Lenses Using Sky Survey Plate Scans." In Proceedings of the Hamburg conference on ’Gravitational Lenses’, Lecture Notes in Physics 406. Edited by R. Kayser, T. Schramm, and L. Nieser. Lecture Notes in Physics, volume 406. Berlin Heidelberg, Germany: Springer-Verlag, 1992. 323-327.
B. Pirenne, J. Surdej, and P. Magain. "Using the HST archive - gravitational lenses from the snapshot survey." ST-ECF Newsletter 17 (1992): 22-23.
S. Refsdal and J. Surdej. "First invited discourse during the XXIst General Assembly of the International Astronomical Union "Gravitational lensing"." In Highlights of Astronomy, Vol. 9, p.3. Edited by Bergeron. IAU Conf. Series ’Highlights of Astronomy’ Vol. 9. Netherlands, 1992. 3-32.
Peer reviewed
J. Surdej. "Gravitational lenses: observations." In invited talk delivered during the first general meeting of the European Astronomical Society "The impact of space research on astronomy". 1992.
J. Surdej. "Gravitational lenses: observations, invited talk." In Proceedings of the First general meeting of the European Astronomical Society "The impact of space research on astronomy". 1992.
J. Surdej, J.-F. Claeskens, D. Crampton, A. V. Filippenko, D. Hutsemekers, P. Magain, B. Pirenne, C. Vanderriest, and H. K. C. Yee. "Gravitational lensing statistics based on a large sample of highly luminous quasars observed with ground-based telescopes and HST." In Proceedings of a ST-ECF/STScI Workshop "Science with the Hubble Space Telescope". Edited by P. Benvenuti and E. J. Schreier. European Southern Observatory Astrophysics Symposia. Garching near Munich, Germany: European Southern Observatory, 1992. 111-118.
J. Surdej, J.-F. Claeskens, D. Hutsemekers, P. Magain, and B. Pirenne. "Optical observations of gravitational lenses." In Proceedings of the Hamburg conference on ’Gravitational Lenses’, Lecture Notes in Physics 406. Edited by R. Kayser, T. Schramm, and L. Nieser. Lecture Notes in Physics, volume 406. Berlin Heidelberg, USA: Springer-Verlag, 1992. 27-43.
J. Surdej, M. Remy, and H. Haubold. "World Astronomy Day (WAD) Project #3: Astrophysical and Cosmological Tests Using Gravitational Lenses." In ESO Conference and Workshop Proceedings, No. 44. Edited by P. Benvenuti and Schreier. ESO Conference and Workshop Proceedings. Garching near Munich, Germany: ESO, 1992. 127-132.
R. Kayser, J. Surdej, J. J. Condon, K. I. Kellermann, P. Magain, M. Remy, and A. Smette. "New observations and gravitational lens models of the Cloverleaf quasar H1413 + 117." Astrophysical Journal 364 (November 20, 1990): 15-22.
Peer reviewed (verified by ORBi)
M.-C. Angonin, C. Vanderriest, M. Remy, and J. Surdej. "First spectroscopic evidence of microlensing on a BAL quasar? The case of H 1413 + 117." Astronomy and Astrophysics 233 (July 1990): 5-8.
Peer reviewed (verified by ORBi)
M. C. Angonin, C. Vanderriest, and J. Surdej. "Spectrographie Bidimensionnelle de 2 Mirages Gravitationnels avec SILFID." Bulletin d'Information du Télescope Canada-France-Hawaii 22 (January 1, 1990): 14-14.
M. C. Angonin, C. Vanderriest, and J. Surdej. "Bidimensional spectrography of the "clover leaf'' H1413+117 at sub-arcsec. Spatial resolution." In Gravitational Lensing. Edited by Y. Mellier, B. Fort, and G. Soucail. Lecture Notes in Physics 360. Berlin Heidelberg, Germany: Springer-Verlag, 1990. 124-126.
P. Magain, M. Remy, J. Surdej, J.-P. Swings, and A. Smette. "A search for gravitational lensing among highly luminous quasars - New results." In Gravitational Lensing. Edited by Y. Mellier, B. Fort, and G. Soucail. Lecture Notes in Physics 360. Berlin Heidelberg, Germany: Springer-Verlag, 1990. 88-92.
A. Smette, J. Surdej, P. A. Shaver, C. B. Foltz, F. H. J. Chaffee, and P. Magain. "Preliminary analysis of high-resolution spectra for UM 673 A & B." In Gravitational Lensing. Edited by G. Soucail. Lecture Notes in Physics 360. Berlin Heidelberg, Germany: Springer-Verlag, 1990. 122-123.
J. Surdej. "Observational aspects of gravitational lensing." In Gravitational Lensing. Edited by Y. Mellier. Lecture Notes in Physics 360. Berlin Heidelberg, Germany: Springer-Verlag, 1990. 57-72.
J. Surdej. "Profils de raies de type P Cygni: moments d'ordre N, effets de contamination photosphérique et de micro-lentille gravitationnelle." Unpublished post doctoral thesis (Agrégation de l'enseignement supérieur), Université de Liège, ​Liège, ​​Belgique, 1990.
J.-P. Swings, P. Magain, M. Remy, J. Surdej, A. Smette, D. Hutsemekers, and E. van Drom. "A search for gravitational lensing among highly luminous quasars - Observational strategy and survey." In Gravitational Lensing. Edited by G. Soucail, Y. Mellier, and B. Fort. Lecture Notes in Physics 360. Berlin Heildelberg, Germany: Springer-Verlag, 1990. 83-87.
J. Surdej, J. Arnaud, U. Borgeest, S. Djorgovski, F. Fleischmann, F. Hammer, D. Hutsemekers et al. "Profiles of a Key Programme: Gravitational Lensing." The Messenger 55 (1989): 8-12.
P. Magain, J. Surdej, J.-P. Swings, U. Borgeest, and R. Kayser. "Discovery of a quadruply lensed quasar - The 'clover leaf' H1413 + 117." Nature 334 (July 1, 1988): 325-327.
Peer reviewed
J. Surdej, P. Magain, J.-P. Swings, U. Borgeest, T. J.-L. Courvoisier, R. Kayer, K. I. Kellermann, H. Kuhr, and S. Refsdal. "Observations of the new gravitational lens system UM 673 = Q 0142-100." Astronomy and Astrophysics 198 (1988): 49-60.
Peer reviewed (verified by ORBi)
J. Surdej, P. Magain, J.-P. Swings, M. Remy, U. Borgeest, R. Kayser, S. Refsdal, and H. Kühr. "Preliminary results from a search for gravitational lensing within a sample of highly luminous quasars." In Proceedings to the First D.A.E.C. workshop on "Large Scale Structures". Edited by C. Balkowski and S. Gordon. 1988. 95-101.
J. Surdej, J.-P. Swings, P. Magain, U. Borgeest, R. Kayser, S. Refsdal, T. J.-L. Courvoisier, K. I. Kellermann, and H. Kuhr. "Search for Gravitational Lensing from a Survey of Highly Luminous Quasars." In ASP Conference Series, Volume 2, Proceedings of a Workshop on Optical Surveys for Quasars. Edited by P. Osmer and M. M. Phillips. ASP Conference Series, Volume 2. Provo-Utah, USA: Astronomical Society of the Pacific, 1988. 183-193.
J. Surdej. "Mirages caused by a gravitational lens." In Exercises in astronomy...Revised and extended edition of "Practical work in elementary astronomy" by M. G. J. Minnaert. D. ReidelPublishing Co., Dordrecht, The Netherlands. 24+339 pp. Price Dfl. 140.00, US 64.00, £ 49.50 cloth; Dfl. 59.00, US 19.50, £ 18.00 paper (1987). ISBN 90-277-2409-1 cloth, ISBN 90-277-2423-7 paper. Edited by J. Kleczek. D. Reidel Publishing Company. 1987. 247-250.
J. Surdej, P. Magain, J.-P. Swings, U. Borgeest, T. J.-L. Courvoisier, R. Kayser, K. I. Kellermann, H. Kuhr, and S. Refsdal. "A new case of gravitational lensing." Nature 329 (1987): 695-696.
Peer reviewed (verified by ORBi)
J. Surdej. "Quasars et lentilles gravitationnelles." Ciel et Terre 100 (1984): 153-162.
J. Surdej. "A new approach for deriving mass-loss rates of BAL quasars : the first order moment W1 of an unsaturated P Cygni absorption component." In LIA Colloq. 24: Quasars and Gravitational Lenses. LIAC Liège International Astrophysical Colloquium. 1983. 616-620.
J. Surdej, J.-P. Swings, A. Henry, H. Arp, A. Kruszewski, and H. Pedersen. "A new very interesting pair of quasars - Q0107 - 025 A and B." In 24th Liege International Astrophysical Colloquium: "Quasars and gravitational lenses". Liège, Belgium, 1983. 355-359.
J.-P. Swings, H. Arp, J. Surdej, A. Henry, and E. Gosset. "A Survey of Ultraviolet Excess Quasar Candidates in a Large Field around NGC450." In LIAC Colloq. 24: Quasars and Gravitational Lenses. LIAC Liège International Astrophysical Colloquium. 1983. 37-42.