Author: Mezhvuzovskai︠a︡ nauchno-prakticheskai︠a︡ konferent︠s︡ii︠a︡ "Kotozhekovskie chtenii︠a︡, posvi︠a︡shchennye 60-letii︠u︡ so dni︠a︡ rozhdenii︠a︡ G.G. Kotozhekova" (2002 Abakan, Russia)