@article{MP_1998_a11,
     author = {V. Z. Belen'kii and A. A. Zaslavskii},
     title = {{\CYRR}{\cyre}{\cyrsh}{\cyre}{\cyrn}{\cyri}{\cyre} {\cyro}{\cyrb}{\cyro}{\cyrb}{\cyrshch}{\cyre}{\cyrn}{\cyrn}{\cyro}{\cyrishrt} {\cyrz}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyri} {{\CYRM}{\cyra}{\cyrl}{\cyrsftsn}{\cyrf}{\cyra}{\cyrt}{\cyrt}{\cyri}} {\cyrs}~{\cyrp}{\cyro}{\cyrm}{\cyro}{\cyrshch}{\cyrsftsn}{\cyryu} {\cyrk}{\cyro}{\cyrm}{\cyrp}{\cyrl}{\cyre}{\cyrk}{\cyrs}{\cyrn}{\cyro}{\cyrishrt} ({\cyrg}{\cyri}{\cyrp}{\cyre}{\cyrr}{\cyrb}{\cyro}{\cyrl}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyro}{\cyrishrt}) {\cyrt}{\cyrr}{\cyri}{\cyrg}{\cyro}{\cyrn}{\cyro}{\cyrm}{\cyre}{\cyrt}{\cyrr}{\cyri}{\cyri}},
     journal = {Matematicheskoe Prosveshchenie},
     pages = {141--154},
     publisher = {mathdoc},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MP_1998_a11/}
}