@article{TVP_1961_6_2_a9,
     author = {L. P. Postnikova},
     title = {\"Uber die {Zusammenhang} der {Begriffe} des {Kollektives} von},
     journal = {Teori\^a vero\^atnostej i ee primeneni\^a},
     pages = {232--234},
     year = {1961},
     volume = {6},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TVP_1961_6_2_a9/}
}