@misc{MZM_1993_53_6_a17,
     title = {{\CYRO}{\cyrp}{\cyre}{\cyrch}{\cyra}{\cyrt}{\cyrk}{\cyri}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {160},
     publisher = {mathdoc},
     volume = {53},
     number = {6},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1993_53_6_a17/}
}