@article{MS_1965__108_3_a7, author = {{\CYRA}.{\CYRV}. {\CYRCH}{\cyre}{\cyrr}{\cyrn}{\cyra}{\cyrv}{\cyrs}{\cyrk}{\cyri}{\cyrishrt}}, title = {{\CYRD}{\cyro}{\cyrp}{\cyro}{\cyrl}{\cyrn}{\cyre}{\cyrn}{\cyri}{\cyre} {\cyrk} {\cyrs}{\cyrt}{\cyra}{\cyrt}{\cyrsftsn}{\cyre} }, journal = {Matemati\v{c}eskij sbornik}, pages = {471--472}, publisher = {mathdoc}, volume = {108}, number = {3}, year = {1965}, zbl = {0129.15101}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1965__108_3_a7/} }