%0 Journal Article %A V. E. Stepanov %T On the distribution of the number of vertices in strata of a random tree %J Teoriâ veroâtnostej i ee primeneniâ %D 1969 %P 64-77 %V 14 %N 1 %U http://geodesic.mathdoc.fr/item/TVP_1969_14_1_a6/ %G ru %F TVP_1969_14_1_a6