Reference

Mikhail A. Akhmetiev, Nina I. Zaporozhets, Vladimir N. Benyamovskiy, Galina N. Aleksandrova, Alina I. Iakovleva, Tatiana V. Oreshkina (2011): Open and semi-closed Paleogene marine systems in northeastern Peri-Tethys: stable and transitional biostratigraphic, paleogeographic and paleoclimatological aspects – Berichte der Geologischen Bundesanstalt – 85: 29.