ZAWADKA, Jan; IVOLGA, Anna. Tourist popularity of Poland among the inhabitants of Stavropol Krai. Turystyka i Rozwój Regionalny, [S. l.], n. 7, p. 121–128, 2017. DOI: 10.22630/TIRR.2017.7.12. Disponível em: https://tirr.sggw.edu.pl/article/view/3269. Acesso em: 4 kwi. 2025.