GÓRNIAK, Katarzyna; BAHRANOWSKI, Krzysztof; GAWEŁ, Adam; MARYNOWSKI, Leszek; SZYDŁAK, Tadeusz. 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: 9 apr. 2025.