SMIRNOVA, O. P.; PONOMAREVA, A. O. Modelling Interregional Cooperation in the Real Sector of the Russian Economy. Amazonia Investiga, [S. l.], v. 8, n. 22, p. 6–14, 2019. Disponível em: https://amazoniainvestiga.info/index.php/amazonia/article/view/15. Acesso em: 3 jul. 2024.