OSIPOV, A. Ecotourism in Russian Karelia: Emergence, development, opportunities. Matkailututkimus, [S. l.], v. 15, n. 1, p. 53–66, 2019. DOI: 10.33351/mt.79700. Disponível em: https://journal.fi/matkailututkimus/article/view/79700. Acesso em: 24 marras. 2024.