@article{MS_1990__181_11_a10,
     author = {{\CYRA}.{\CYRV}. {\CYRP}{\cyra}{\cyrzh}{\cyri}{\cyrt}{\cyrn}{\cyro}{\cyrv}},
     title = {{\CYRP}{\cyri}{\cyrs}{\cyrsftsn}{\cyrm}{\cyro} {\cyrv} {\cyrr}{\cyre}{\cyrd}{\cyra}{\cyrk}{\cyrc}{\cyri}{\cyryu}},
     journal = {Matemati\v{c}eskij sbornik},
     pages = {1580--1580},
     publisher = {mathdoc},
     volume = {181},
     number = {11},
     year = {1990},
     zbl = {0711.57020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MS_1990__181_11_a10/}
}