@article{MP_2005_a6,
     author = {S. B. Gashkov},
     title = {{\CYRN}{\cyre}{\cyrr}{\cyra}{\cyrv}{\cyre}{\cyrn}{\cyrs}{\cyrt}{\cyrv}{\cyro} {{\CYRF}{\cyre}{\cyrishrt}{\cyre}{\cyrr}{\cyra}--{\CYREREV}{\cyrg}{\cyre}{\cyrr}{\cyrv}{\cyra}{\cyrr}{\cyri}--{\CYRS}{\cyra}{\cyrs}{\cyrs}{\cyra}} {\cyrd}{\cyrl}{\cyrya} {\cyrn}{\cyre}{\cyro}{\cyrt}{\cyrr}{\cyri}{\cyrc}{\cyra}{\cyrt}{\cyre}{\cyrl}{\cyrsftsn}{\cyrn}{\cyrery}{\cyrh} {\cyrt}{\cyrr}{\cyri}{\cyrg}{\cyro}{\cyrn}{\cyro}{\cyrm}{\cyre}{\cyrt}{\cyrr}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyri}{\cyrh} {\cyrm}{\cyrn}{\cyro}{\cyrg}{\cyro}{\cyrch}{\cyrl}{\cyre}{\cyrn}{\cyro}{\cyrv}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {69--75},
     publisher = {mathdoc},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_2005_a6/}
}