Górniak, Katarzyna, Krzysztof Bahranowski, Adam Gaweł, Leszek Marynowski, and Tadeusz Szydłak. “Middle Jurassic Black Shales (Skrzypny Shale Formation) – Palaeoenvironmental Significance of One of the Oldest Deposits of the Pieniny Klippen Belt”. Geotourism/Geoturystyka, no. 13 (July 4, 2018): 19. Accessed May 7, 2024. https://journals.agh.edu.pl/geotour/article/view/687.