@article{MP_1961_a7,
     author = {Yu. D. Burago},
     title = {{\CYRZ}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyra} {\cyro}~{\cyrk}{\cyrr}{\cyru}{\cyrg}{\cyre} {{\CYRYU}{\cyrn}{\cyrg}{\cyra}} {\cyrd}{\cyrl}{\cyrya} {\cyrs}{\cyrf}{\cyre}{\cyrr}{\cyrery}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {165--170},
     publisher = {mathdoc},
     year = {1961},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_1961_a7/}
}