@article{MS_1987__174_1_a0,
     author = {{\CYREREV}.{\CYRS}. {\CYRB}{\cyre}{\cyrl}{\cyri}{\cyrn}{\cyrs}{\cyrk}{\cyri}{\cyrishrt}},
     title = {{\CYRP}{\cyrr}{\cyri}{\cyrb}{\cyrl}{\cyri}{\cyrzh}{\cyre}{\cyrn}{\cyri}{\cyre} },
     journal = {Matemati\v{c}eskij sbornik},
     pages = {20--27},
     publisher = {mathdoc},
     volume = {174},
     number = {1},
     year = {1987},
     zbl = {0642.42003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MS_1987__174_1_a0/}
}