@article{RM_1971_26_3_a25,
     author = {V. P. Kozyrev and A. Ya. Petrenyuk},
     title = {Joint {Seminar} on {Combinatorial} {Mathematics} in {Moscow} {State} {University}},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     publisher = {mathdoc},
     volume = {26},
     number = {3},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1971_26_3_a25/}
}