@article{MS_1971__128_4_a9,
     author = {{\CYRYU}.{\CYRI}. {\CYRM}{\cyra}{\cyrn}{\cyri}{\cyrn}},
     title = {{\CYRP}{\cyri}{\cyrs}{\cyrsftsn}{\cyrm}{\cyra} {\cyrv} {\cyrr}{\cyre}{\cyrd}{\cyra}{\cyrk}{\cyrc}{\cyri}{\cyryu}},
     journal = {Matemati\v{c}eskij sbornik},
     pages = {644--644},
     publisher = {mathdoc},
     volume = {128},
     number = {4},
     year = {1971},
     zbl = {0229.14013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MS_1971__128_4_a9/}
}