Shiryaev, D. V., I. L. Litvinenko, N. V. Rubtsova, E. P. Kolpak, V. A. Blaginin, and E. N. Zakharova. “Economic Clusters As a Form of Self-Organization of the Economic System”. International Journal of Economics and Financial Issues, vol. 6, no. 1S, May 2016, pp. 284-8, https://www.econjournals.com/index.php/ijefi/article/view/2400.