Competition for a hotel in Irkutsk. project baikal, Irkutsk, Russian Federation, v. 20, n. 77, p. 8–11, 2023. DOI: 10.51461/issn.2309-3072/77.2181. Disponível em: https://projectbaikal.com/index.php/pb/article/view/2181. Acesso em: 10 may. 2026.