Baran, Paweł, Janusz Cygankiewicz, Andrzej Krzyżanowski, and Katarzyna Zarębska. “Sorption of Saturated and Unsaturated Hydrocarbons on Selected Coal Sample from the Pniówek Mine”. Geology, Geophysics and Environment 39, no. 4 (December 11, 2013): 341. Accessed September 20, 2024. https://ggae.agh.edu.pl/index.php/geol/article/view/712.