Author: Vserossiĭskai︠a︡ nauchno-prakticheskai︠a︡ konferent︠s︡ii︠a︡ s mezhdunarodnym uchastiem Aksakovy i Kaluzhskiĭ kraĭ (2007 Kaluga, Kaluzhskai︠a︡ oblastʹ, Russia)