Zawilińska, Bernadetta. “Methods of Analysing Tourist Traffic and the Consumption of Tourist Services in Polish National Parks”. Studies of the Industrial Geography Commission of the Polish Geographical Society 35, no. 3 (September 30, 2021): 41–61. Accessed May 20, 2024. https://prace-kgp.uken.krakow.pl/article/view/8592.