Maltseva, A., E. Klyushnikova, A. Gridchina, T. Kuzmina, et A. Petergova. The Current State and Problems of Scientific Communications in Russian Language in the CIS Countries Space. Amazonia Investiga, Vol. 8, nᵒ 20, June 2019, p. 432-50, https://amazoniainvestiga.info/index.php/amazonia/article/view/173.