Calpionellid, nannofosil and calcareous dinocyst bioevents and integrated biochronology of the Tithonian to Valangian in the Western Balkanides, Bulgaria

Autor Lakova, Iskra, Ivanova, Daria, Stoykova, Kristalina
Zdroj: 1. Geologica carpathica 1. 1335-0552 1. Roč. 50, č. 2 (1999), s. 151-168