1. Gumilev, L.N., Ancient Rus and the Great Steppe, Moscow: Mysl’, 1989 [in Russian].
2. Druzhinin, A.G., Russia in Multipolar Russia: A View of a Social Geographer: Monograph, Rostov-on-Don: Izd. Yuzhn. Feder. Univ., 2016 [in Russian].
3. Kaganskii, V.L., The Eurasian Concept of Russia’s Space, in Civilizations, Vol. 6: Russia in Civilizational Structure of Eurasian Continent, A.O. Chubaryan, Ed., Moscow: Nauka, 2004, pp. 201–216 [in Russian].
4. Gladkii, Yu.N., Russia in the Labyrinths of Geographical Fate, St. Petersburg: Yuridicheskii Tsentr-Press, 2006 [in Russian].
5. Zamyatin, D.N., Geocracy. Eurasia as the Image, Symbol and Project of Russian Civilization, Politicheskie Issledovaniya, 2009, no. 1, pp. 71–90 [in Russian].