NAROVLIANSKYI, Oleksandr; NAROVLIANSKA, Maryna; LUKATSKYI, Yevhenii; OVCHARENKO, Olena; DNIPROV, Oleksii. Online-Based Competitions in Educational Tourism in Ukraine: an Empirical Study in Crisis Contexts. Journal of Vasyl Stefanyk Precarpathian National University, [S. l.], v. 13, n. 1, p. 176–191, 2026. DOI: 10.15330/jpnu.13.1.176-191. Disponível em: https://journals.pnu.edu.ua/index.php/jpnu/article/view/10429. Acesso em: 4 apr. 2026.