Author: Vserossiĭskai︠a︡ konferent︠s︡ii︠a︡, posvi︠a︡shchennai︠a︡ 100-letii︠u︡ so dni︠a︡ rozhdenii︠a︡ professora A.D. Fursaeva (2000 Saratov, Russia)