PYTKIN, A. N.; BALANDIN, D. A.; VAVILOVA, M. S. The arctic investment aspects. Perm Federal Research Centre Journal, [S. l.], n. 2, p. 23–31, 2013. Disponível em: https://journal-dev.icmm.ru/index.php/pscj/article/view/PSCJ2013n2p3. Acesso em: 13 may. 2026.