Vilkul, Y., K. Pavlov, O. Svitlychnyy, and A. Nahornyy. “Prospects for Economic Diversification of the Kryvyy Rih-City”. Skhid, no. 4(118), Aug. 2013, pp. 16-21, doi:10.21847/1728-9343.2012.4(118).16515.