Cimerman, F.; Jelen, B.; Skaberne, D. Late Eocene Benthic Foraminiferal Fauna from Clastic Sequence of the Socka - Dobrna Area and Its Chronostratigraphic Importance (Slovenia) . geologija 2006, 49 (1), 7-44. https://doi.org/10.5474/geologija.2006.001.