Bibliography
- Billington, R.A. Frederick Jackson Turner: Historian, Scholar, Teacher . New York: Oxford University Press, 1973.
- “Reiting regionov po kachestvu zhizni—2015.” RIA Reiting, 2016. http://vid1.rian.ru/ig/ratings/life_2015.pdf (accessed April 4, 2018).
- Zadorin, I.V. and D.G. Zaytsev , “Sostoianie i perspektivy razvitiia rossiiskogo federalizma v obshchestvennykh predstavleniiakh i nastroeniiakh,” Politicheskaia nauka , 2011, no. 4, pp. 258–76.
- Zadorin, I.V. ; O.A. Gurkina ; T.S. Karabchuk ; A.A. Moiseeva ; L.A. Pautova ; L.V. Shubina ; and L.V. Zhvirblis . Integratsionnyyi barometr EABR—2015 (chetvertaia volna izmerenii). Saint Petersburg: TsII EABR, 2015. https://eabr.org/upload/iblock/39b/edb_centre_analytical_report_33_full_rus.pdf (accessed April 22, 2018).