@article{DAN_1967_176_3_a10,
     author = {O. V. Sarmanov and V. K. Zakharov},
     title = {A combinatorial problem of {N.} {V.~Smirnov}},
     journal = {Doklady Akademii Nauk},
     pages = {530--532},
     year = {1967},
     volume = {176},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1967_176_3_a10/}
}