Kolpakova, G. M., and J. V. Evdokimova. “Analysis of the Rating of the Russian Federation in the Global Economy in Terms of Socio-Economic Development in the Conditions of Political and Economic Sanctions”. Mediterranean Journal of Social Sciences, vol. 6, no. 6 S7, Dec. 2015, p. 139, https://www.richtmann.org/journal/index.php/mjss/article/view/8607.