Siblík, M. New data on the Hettangian brachiopod fauna of the Northern Calcareous Alps (Austria, Bavaria). Abhandlungen der Geologischen Bundesanstalt. 1999, 56(2), 419-438. ISSN 0378-0864. Dostupné z: https://opac.geologie.ac.at/ais312/detail.aspx?parentpriref=