@article{MP_1961_2_6_a13,
     author = {A. G. Dorfman},
     title = {{\CYRR}{\cyro}{\cyrm}{\cyrb}{\cyro}{\cyrk}{\cyru}{\cyrb}{\cyro}{\cyro}{\cyrk}{\cyrt}{\cyra}{\cyrerev}{\cyrd}{\cyrr}{\cyrery} {\cyri} {\cyrv}{\cyrz}{\cyra}{\cyri}{\cyrm}{\cyrn}{\cyrery}{\cyre} {\cyri}{\cyrm} {\cyrm}{\cyrn}{\cyro}{\cyrg}{\cyro}{\cyrg}{\cyrr}{\cyra}{\cyrn}{\cyrn}{\cyri}{\cyrk}{\cyri}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {207--208},
     year = {1961},
     volume = {Ser. 2, 6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_1961_2_6_a13/}
}