%0 Journal Article %A A. A. Novikov %A A. N. Širyaev %T IV Soviet-Japanese symposium on probability theory and mathematical statistics %J Teoriâ veroâtnostej i ee primeneniâ %D 1983 %P 198-199 %V 28 %N 1 %U http://geodesic.mathdoc.fr/item/TVP_1983_28_1_a17/ %G ru %F TVP_1983_28_1_a17