-, -. Additional notes // Uwagi dodatkowe. Geotourism/Geoturystyka, [S. l.], n. 42-43, 2017. DOI: 10.7494/geotour.2015.42-43.%p. Disponível em: https://journals.agh.edu.pl/geotour/article/view/2282. Acesso em: 13 mar. 2025.