Ovcharenko, R. K., O. Y. Goncharova, E. N. Kondratenko, G. V. Trofimov, and A. V. Glushchenko. “Sanctions on Russia: Effectiveness and Impacts on the National Security of Russia”. Amazonia Investiga, vol. 8, no. 22, Sept. 2019, pp. 565-73, https://amazoniainvestiga.info/index.php/amazonia/article/view/804.