Tourism in selected river valleys of Wallonia and its effect on the local communities in the context of sustainable development. Geography and Tourism, [S. l.], v. 2, n. 3, p. 49–58, 2015. Disponível em: https://czasopisma.ukw.edu.pl/index.php/gat/article/view/37.. Acesso em: 24 nov. 2024.