Ginis, L. A., G. V. Gorelova, and A. E. Kolodenkova. “Cognitive and Simulation Modeling of Regional Economic System Development”. International Journal of Economics and Financial Issues, vol. 6, no. 5S, Aug. 2016, pp. 97-103, https://www.econjournals.com/index.php/ijefi/article/view/2872.