@article{MS_1974__137_1_a7,
     author = {{\CYRI}.{\CYRM}. {\CYRK}{\cyrr}{\cyri}{\cyrch}{\cyre}{\cyrv}{\cyre}{\cyrr}},
     title = {{\CYRZ}{\cyra}{\cyrm}{\cyre}{\cyrch}{\cyra}{\cyrn}{\cyri}{\cyre} {\cyrk} {\cyrr}{\cyra}{\cyrb}{\cyro}{\cyrt}{\cyre} },
     journal = {Matemati\v{c}eskij sbornik},
     pages = {146--147},
     publisher = {mathdoc},
     volume = {137},
     number = {1},
     year = {1974},
     zbl = {0344.57016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MS_1974__137_1_a7/}
}