@article{10_4064_cm_22_1_51_57,
     author = {{\CYRV}. {\CYRS}. {\CYRG}{\cyra}{\cyrr}{\cyrv}{\cyra}{\cyrc}{\cyrk}{\cyri}{\cyrishrt} and {\CYRB}. {\CYRM}. {\CYRSH}{\cyra}{\cyrishrt}{\cyrn}},
     title = {{\CYRI}{\cyrn}{\cyrhrdsn}{\cyre}{\cyrk}{\cyrt}{\cyri}{\cyrv}{\cyrn}{\cyrery}{\cyre} {\cyri} {\cyrs}{\cyryu}{\cyrr}{\cyrhrdsn}{\cyre}{\cyrk}{\cyrt}{\cyri}{\cyrv}{\cyrn}{\cyrery}{\cyre} {\cyrm}{\cyro}{\cyrr}{\cyrf}{\cyri}{\cyrz}{\cyrm}{\cyrery} {\cyrv} {\cyra}{\cyrb}{\cyrs}{\cyrt}{\cyrr}{\cyra}{\cyrk}{\cyrt}{\cyrn}{\cyrery}{\cyrh} {\cyrk}{\cyra}{\cyrt}{\cyre}{\cyrg}{\cyro}{\cyrr}{\cyri}{\cyrya}{\cyrh}},
     journal = {Colloquium Mathematicum},
     pages = {51--57},
     publisher = {mathdoc},
     volume = {22},
     number = {1},
     year = {1970},
     doi = {10.4064/cm-22-1-51-57},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-22-1-51-57/}
}