Klyuchnikov, D. A., R. A. Shichiyakh, E. P. Kolpak, V. A. Tupchienko, V. M. Volodin, and A. K. Isaev. “Features of Social and Economic Support of the Territorial Subjects of the Russian Federation”. International Journal of Economics and Financial Issues, vol. 6, no. 8S, Dec. 2016, pp. 234-9, https://www.econjournals.com/index.php/ijefi/article/view/3737.