@article{TIMM_2007_13_3_a9,
     author = {D. A. Serkov},
     title = {C{\cyrt}{\cyrr}{\cyra}{\cyrt}{\cyre}{\cyrg}{\cyri}{\cyri} {\cyrm}{\cyri}{\cyrn}{\cyri}{\cyrm}{\cyra}{\cyrk}{\cyrs}{\cyrn}{\cyro}{\cyrg}{\cyro} {\cyrr}{\cyri}{\cyrs}{\cyrk}{\cyra} ({\cyrs}{\cyro}{\cyrzh}{\cyra}{\cyrl}{\cyre}{\cyrn}{\cyri}{\cyrya}) {\cyrv}~{\cyrs}{\cyri}{\cyrs}{\cyrt}{\cyre}{\cyrm}{\cyre} {\cyrs}~{\cyrp}{\cyrr}{\cyro}{\cyrs}{\cyrt}{\cyrery}{\cyrm}{\cyri} {\cyrd}{\cyrv}{\cyri}{\cyrzh}{\cyre}{\cyrn}{\cyri}{\cyrya}{\cyrm}{\cyri}},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {121--135},
     publisher = {mathdoc},
     volume = {13},
     number = {3},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2007_13_3_a9/}
}