GÓRNIAK, K.; BAHRANOWSKI, K.; GAWEŁ, A.; MARYNOWSKI, L.; SZYDŁAK, T. Middle Jurassic black shales (Skrzypny Shale Formation) – palaeoenvironmental significance of one of the oldest deposits of the Pieniny Klippen Belt. Geotourism/Geoturystyka, [S. l.], n. 13, p. 19, 2018. DOI: 10.7494/geotour.2008.13.19. Disponível em: https://journals.agh.edu.pl/geotour/article/view/687. Acesso em: 7 may. 2024.