Naglik, Beata, Lucyna Natkaniec-Nowak, and Wiesław Heflik. “Mineral Assemblages As a Record of the Evolutionary History of the Pepper Mts. Shale Formation (the Holy Cross Mts.)”. Geology, Geophysics and Environment 42, no. 2 (October 9, 2016): 161. Accessed April 20, 2024. https://journals.agh.edu.pl/geol/article/view/1979.