Chen H.Y., Rizos C., and Han S. An instantaneous ambiguity resolution procedure suitable for medium scale GPS reference station network. Survey Review 37 291 (2004) 396-410
Hernandez-Pajares M., Juan J.M., and Sanz J. Application of ionospheric tomography to real-time GPS carrier-phase ambiguities resolution, at scales of 400-1000 km and with high geomagnetic activity. Geophysical Research Letters 27 13 (2000) 2009-2012
Joosten P., and Tiberius C. Fixing the ambiguities : are you sure they're right?. GPS World 11 5 (2000) 46-51
Leick A. GPS Satellite Surveying, third ed (2004), Wiley, New York [435p]
Ou J.K., and Wang Z.J. An improved regularization method to resolve integer ambiguity in rapid positioning using single-frequency GPS receivers. Chinese Science Bulletin 49 2 (2004) 196-200
Seeber G. Satellite Geodesy, second ed (2003), de Gruyter, New York [589 p]
Wanninger, L., 1992. Monitoring total ionospheric electron content and ionospheric irregularities with GPS. Proceedings of the symposium on refraction of transatmospheric signals. Den Haag, Netherlands, Geodetic Commission, Publications in Geodesy, no. 36, pp. 141-146.
Wanninger, L., 1994. Der einfluss der ionosphaere auf die positionierung mit GPS. PH.D. thesis, Wissenschaftliche arbeiten der Fachrichtung Vermessungswesen der Universität Hannover, no. 201, 137p (in German).
Wanninger, L., 1999. The performance of virtual reference stations in active geodetic GPS-networks under solar maximum conditions. Proceedings of the ION GPS 99, Nashville TN, pp. 1419-1427.
Warnant, R., 1996. Etude du comportement du contenu electronique total et de ses irrégularités dans une région de latitude moyenne. Applications aux calculs de positions relatives par GPS. Ph.D. thesis, Série Géophysique (No. Hors-Série) de l'Observatoire Royal de Belgique, Belgium (in French).
Warnant R. Detection of irregularities in the TEC using GPS measurements. Application to a mid-latitude station. Acta Geodaetica et Geophysica, Hungarica 33 (1998) 121-128
Warnant R., and Pottiaux E. The increase of the ionospheric activity as measured by GPS. Earth, Planets and Space 52 11 (2000) 1055-1060
Warnant, R., Kutiev, I., Marinov, P., Bavier, M., Lejeune, S., 2006-1. Ionospheric and geomagnetic conditions during periods of degraded GPS position accuracy: 1. Monitoring variability in TEC which degrades the accuracy of Real Time Kinematic GPS application, Advances in Space Research, in press.
Warnant, R., Kutiev, I., Marinov, P., Bavier, M., Lejeune, S., 2006-2. Ionospheric and geomagnetic conditions during periods of degraded GPS position accuracy: 2. RTK events during disturbed and quiet geomagnetic conditions. Advances in Space Research, in press.
Warnant, R., Lejeune, S., Bavier, M., 2007. Space weather influence on satellite-based navigation and precise positioning. In: Lilensten, J. (Ed.), Space Weather-Research towards Applications in Europe, Astrophysics and Space Science Library series, vol. 344, Springer, pp. 129-146.
