@misc{MZM_1986_39_2_a15,
     title = {{\CYRS}ongratulation},
     journal = {Matemati\v{c}eskie zametki},
     pages = {300},
     publisher = {mathdoc},
     volume = {39},
     number = {2},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1986_39_2_a15/}
}