CHYLIŃSKA, D. Głęboki ocean i jaskinie: granice ostateczne w turystyce. Studia Periegetica, [S. l.], v. 42, n. 2, p. 143–162, 2023. DOI: 10.58683/sp.592. Disponível em: https://journals.wsb.poznan.pl/index.php/sp/article/view/592. Acesso em: 3 lip. 2024.