@article{MP_1957_2_1_a34, author = {B. A. Kordemskii}, title = {{\CYRD}{\cyrv}{\cyre} {\cyrz}{\cyra}{\cyrr}{\cyru}{\cyrb}{\cyre}{\cyrzh}{\cyrn}{\cyrery}{\cyre} {\cyrk}{\cyrn}{\cyri}{\cyrg}{\cyri} {\cyrp}{\cyro} {\cyrz}{\cyra}{\cyrn}{\cyri}{\cyrm}{\cyra}{\cyrt}{\cyre}{\cyrl}{\cyrsftsn}{\cyrn}{\cyro}{\cyrishrt} {\cyrm}{\cyra}{\cyrt}{\cyre}{\cyrm}{\cyra}{\cyrt}{\cyri}{\cyrk}{\cyre}}, journal = {Matematicheskoe Prosveshchenie}, pages = {261--268}, year = {1957}, volume = {Ser. 2, 1}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MP_1957_2_1_a34/} }