Andrei A. Kulkov, Leisan Ya. Davletshina The development of sports facilities: the problems and ways to increase the economic efficiency at the stage of exploitation // Russian Journal of Entrepreneurship. — 2016. — Vol. 17. — № 21. — p. 2971–2986. — doi: 10.18334/rp.17.21.36909
Milena Guseynova Republic of Dagestan: Priorities for the Economic Development // Russian Journal of Entrepreneurship. — 2011. — № 2-1 (177). — p. 172-176. — URL: http://bgscience.ru/com/lib/2749
