@article{MP_1959_a13, author = {V. G. Kopp}, title = {{\CYRO}{\cyrb} {\cyro}{\cyrd}{\cyrn}{\cyro}{\cyrm} {\cyrt}{\cyri}{\cyrp}{\cyre} {\cyrk}{\cyrr}{\cyru}{\cyrg}{\cyro}{\cyrv}{\cyro}{\cyrishrt} {\cyrn}{\cyro}{\cyrm}{\cyro}{\cyrg}{\cyrr}{\cyra}{\cyrm}{\cyrm}{\cyrery}}, journal = {Matematicheskoe Prosveshchenie}, pages = {171--174}, publisher = {mathdoc}, year = {1959}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MP_1959_a13/} }