Litvinenko, I.L., Syzdykova, Z.S., Novoselov, S.N., Novoselova, N.N., Gureva, M.A. and Tupchienko, V.A. 2016. Macroeconomic Trends and Features of Regional Economy Development in the 21st Century. International Journal of Economics and Financial Issues. 6, 8S (Dec. 2016), 7–12.