KARPOVICH, Yu.V.; LEPIKHINA, T.L. INNOVATION FORMS OF TOURISM DEVELOPMENT IN PERM REGION. Perm Federal Research Centre Journal, [S. l.], n. 2, p. 47–50, 2016. Disponível em: https://journal.permsc.ru/index.php/pscj/article/view/PSCJ2016n2p7. Acesso em: 14 may. 2026.