Comparison of demand for environmentally friendly forms of recreation organized by PTTK (using fuzzy relations). Geography and Tourism, [S. l.], v. 2, n. 12, p. 36–48, 2024. DOI: 10.34767/GAT.2024.11.6. Disponível em: https://czasopisma.ukw.edu.pl/index.php/gat/article/view/2464.. Acesso em: 30 jul. 2025.