RÓŻYCKI, Paweł. Methodological aspects of research on tourist activity – new concepts. Geotourism/Geoturystyka, [S. l.], n. 30-31, p. 35, DOI: 10.7494/geotour.2012.30-31.35. Disponível em: https://journals.agh.edu.pl/geotour/article/view/942. Acesso em: 12 apr. 2025.