@article{VCHGU_1991_1_a6,
     author = {V. A. Zorin and K. A. Ryazanov and A. G. Khomutetskiy},
     title = {{\CYRU}{\cyrs}{\cyrt}{\cyro}{\cyrishrt}{\cyrch}{\cyri}{\cyrv}{\cyro}{\cyrs}{\cyrt}{\cyrsftsn} {\cyrr}{\cyra}{\cyrv}{\cyrn}{\cyro}{\cyrv}{\cyre}{\cyrs}{\cyrn}{\cyro}{\cyrg}{\cyro} {\cyrp}{\cyro}{\cyrl}{\cyro}{\cyrzh}{\cyre}{\cyrn}{\cyri}{\cyrya} {\cyrc}{\cyri}{\cyrl}{\cyri}{\cyrn}{\cyrd}{\cyrr}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyro}{\cyrg}{\cyro} {\cyrr}{\cyro}{\cyrt}{\cyro}{\cyrr}{\cyra}, {\cyrp}{\cyro}{\cyrd}{\cyrd}{\cyre}{\cyrr}{\cyrzh}{\cyri}{\cyrv}{\cyra}{\cyre}{\cyrm}{\cyro}{\cyrg}{\cyro} {\cyrt}{\cyro}{\cyrn}{\cyrk}{\cyri}{\cyrm} {\cyrs}{\cyrl}{\cyro}{\cyre}{\cyrm} {\cyrzh}{\cyri}{\cyrd}{\cyrk}{\cyro}{\cyrs}{\cyrt}{\cyri}},
     journal = {Vestnik Chelyabinskogo Gosudarstvennogo Universiteta. Matematika, Mekhanika, Informatika},
     pages = {71--82},
     publisher = {mathdoc},
     number = {1},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VCHGU_1991_1_a6/}
}