Kruczek, Zygmunt, and Karolina Nowak. “Impact of the COVID-19 Pandemic on the Functioning of Selected Tourist Attractions in Poland”. In Turystyka W Badaniach Podstawowych, edited by Marzena Makowska-Iskierka and Jolanta Wojciechowska, 13:37–50. Warsztaty z Geografii Turyzmu. Poland: Lodz University Press, 2023. Accessed January 25, 2026. https://www.press.uni.lodz.pl/index.php/wul/catalog/book/293/chapter/769.