Author: Russia) Nauchnai︠a︡ konferent︠s︡ii︠a︡ posvi︠a︡shchennai︠a︡ 100-letii︠u︡ so dni︠a︡ rozhdenii︠a︡ professora F.A. Kudri︠a︡vt︠s︡eva (1999 Irkutsk