Author: Mezhdunarodnai︠a︡ nauchnai︠a︡ konferent︠s︡ii︠a︡ "Esenin i mirovai︠a︡ kulʹtura" (2007 Moscow and Ri︠a︡zanʹ (Ri︠a︡zanskai︠a︡ oblastʹ), Russia)