1. Regions of Russia. Socio-Economic Indicators. 2018. Statistical Book (Rosstat, Moscow, 2018) [in Russian].
2. Russian Statistical Yearbook. 2017 (Rosstat, Moscow, 2017) [in Russian].
3. L. V. Obolenskaya, “Analysis of the obstacles to the innovation activities of different classes of Russian enterprises,” Innovatsii, No. 8, 33–43 (2017).
4. S. Zainchenko, T. Kuznetsova, and V. Rud’, “Features of interaction of Russian enterprises and scientific organizations in the innovation sphere,” Forsait 8 (1), 6–22 (2014).
5. S. V. Kuznetsov, E. A. Gorin, and M. G. Dzhanelidze, “Modern trends in the innovative development of St. Petersburg,” Innovatsii, No. 8, 3–8 (2017).