@incollection{cec_1989.1386, title = {Upper Cretaceous Didymotis events from Bohemia}, author = {Čech, Stanislav }, year = {1989}, booktitle = {Wiedmann: Cretaceous of the Western Tethys. Proceedings of the 3rd International Cretaceous Symposium, Tübingen 1987}, publisher = {(E. Schweizerbart) Stuttgart}, journal = {(E. Schweizerbart) Stuttgart}, volume = {}, pages = {657–676} }