GOLOVLEVA, V. S.; LAUKHINA, K. D.; PYROVA, M. A.; P. A. PRICING OPTIMIZATION OF SERVICES AND FACILITIES FOR TOURIST IN UGRA NATIONAL PARK. Servis plus, [S. l.], v. 20, n. 1, p. 26–35, 2026. DOI: 10.22412/2413-693X-2026-20-1-26-35. Disponível em: https://service-plus-journal.ru/index.php/service-plus/article/view/172. Acesso em: 29 jun. 2026.