Piechaczek, Aneta. “Polish Domestic Tourism in the Face of SARS‑CoV–2 Pandemic”. Acta Universitatis Lodziensis. Folia Oeconomica 2, no. 353 (June 30, 2021): 29–42. Accessed April 18, 2025. https://czasopisma.uni.lodz.pl/foe/article/view/9200.