SAKOVSKA, Olena; RYBCHAK, Vitalii. Methodological aspects of the formation of competitive advantages of a regional tourist product. Turystyka i Rozwój Regionalny, [S. l.], n. 10, p. 75–84, 2018. DOI: 10.22630/TIRR.2018.10.22. Disponível em: https://tirr.sggw.edu.pl/article/view/3303. Acesso em: 4 kwi. 2025.