@article{MS_1967__115_2_a6,
     author = {{\CYRL}.{\CYRM}. {\CYRG}{\cyrl}{\cyru}{\cyrs}{\cyrk}{\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 = {303--303},
     publisher = {mathdoc},
     volume = {115},
     number = {2},
     year = {1967},
     zbl = {0203.31804},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MS_1967__115_2_a6/}
}