@article{TVP_1969_14_1_a6,
     author = {V. E. Stepanov},
     title = {On the distribution of the number of vertices in strata of a~random tree},
     journal = {Teori\^a vero\^atnostej i ee primeneni\^a},
     pages = {64--77},
     year = {1969},
     volume = {14},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TVP_1969_14_1_a6/}
}