@article{MP_1961_a6, author = {Yu. M. Bezborodov and B. V. Orlov}, title = {{\CYRM}{\cyra}{\cyrsh}{\cyri}{\cyrn}{\cyra} {\cyri}{\cyrg}{\cyrr}{\cyra}{\cyre}{\cyrt} {\cyrv}~{\cyrsh}{\cyra}{\cyrh}{\cyrm}{\cyra}{\cyrt}{\cyrery}}, journal = {Matematicheskoe Prosveshchenie}, pages = {139--164}, publisher = {mathdoc}, year = {1961}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MP_1961_a6/} }