Paper published in a book (Scientific congresses and symposiums)Correlation of the Devonian-Carboniferous Boundary deposits in Eurasia.
Bouckaert, J; Durkina, AV; Simakov, KV et al.
1979 • In Simakov, K (Ed.) Biostratigraphy and fauna of the Devonian-Carboniferous deposits. XIV Pacific Science Congress. Field Excursion Guidebook. 8