@article{MP_2007_a12,
     author = {O. V. Schwarzman},
     title = {{\CYRK}{\cyro}{\cyrm}{\cyrm}{\cyre}{\cyrn}{\cyrt}{\cyra}{\cyrr}{\cyri}{\cyrishrt} {\cyrk}~{\cyrs}{\cyrt}{\cyra}{\cyrt}{\cyrsftsn}{\cyre} {{\CYRP}.\,{\CYRV}.~{\CYRB}{\cyri}{\cyrb}{\cyri}{\cyrk}{\cyro}{\cyrv}{\cyra}} {\cyri} {{\CYRI}.\,{\CYRV}.~{\CYRT}{\cyrk}{\cyra}{\cyrch}{\cyre}{\cyrn}{\cyrk}{\cyro}}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {127--130},
     publisher = {mathdoc},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_2007_a12/}
}