found: Work cat.: 2004402228: Morokhovet︠s︡, I.I. Sot︠s︡ialʹno-ėkologicheskie problemy Kubani, 2003(Kuban ʹ)
found: Columbia Encyclopedia, 6th ed., 2003 (www.bartleby.com/65/ku/Kuban.html)(the Kuban region was from about the mid-18th cent. to 1920 the territory of the Kuban Cossacks)
found: Encyc. of Ukraine:v. 2, p. 687-695 (Kuban is a historical-geographical region in northwestern Caucasia that emerged as a political and administrative unit in 1860 after the unification of the territories of the Black Sea Cossacks with the eastern region of Kuban to create Kuban oblast)
found: GEONet, June 25, 2004(region not given, but several PPL with this name)