@article{nie_2003.353, title = {Late Cretaceous sharks in the Opole Silesia region (SW Poland)}, author = {Niedżwiedzki, Robert and Kalina, Marcin }, year = {2003}, journal = {Geologia Sudetica (Instytut Nauk Geologicznyuch PAN) Kraków}, volume = {35}, pages = {13–24}, url = {https://geojournals.pgi.gov.pl/gs/article/view/13751} }