1. Artemova, OYu. 2000. Initial Phases of Politogenesis. In Civilizational Models of Politogenesis, ed. D.M. Bondarenko and A.V. Korotayev, 54–70. Moscow: Center for Civilizational and Regional Studies.
2. Bacon, E. 1958. Obok. A Study of Social Structure of Eurasia. New York: Wenner-Gren Foundation for Anthropological Research.
3. Barfield, T. 1993. The Nomadic Alternative. Englewood Cliffs, NJ: Prentice Hall.
4. Barfield, T. 1995. Explaining Crisis and Collapse: Comparative Succession Systems in Nomadic Empires. In Etnohistorische Wege und Lehrjahre eines Philosophen. Festschrift fur Lawerence Krader zun 75. Geburstag, ed. D. Schorkowitz, 187–209. Frankfurt am Main: Lang.
5. Barfield, T. 2003. Conclusion. In Nomadic Pathways in Social Evolution, ed. N.N. Kradin, D.M. Bondarenko, and T. Barfield, 172–179. Moscow: Center for Civilizational and Regional Studies.