Borys, Tadeusz, Marek Bugdol, Daniel Puciato, Adam R. Szromek, and Marcin Geryk. “Motivations for Hotels to Undertake Pro-Ecological Activities – Opinions of Hotel Guests”. Czasopismo "Economics and Environment" 87, no. 4 (February 5, 2024): 673, 1–21. Accessed October 30, 2024. https://ekonomiaisrodowisko.pl/journal/article/view/673.