@misc{IVM_1984_8_a20,
     title = {{\CYRP}{\cyra}{\cyrm}{\cyrya}{\cyrt}{\cyri} {{\CYRI}{\cyrg}{\cyro}{\cyrr}{\cyrya}} {{\CYRD}{\cyrm}{\cyri}{\cyrt}{\cyrr}{\cyri}{\cyre}{\cyrv}{\cyri}{\cyrch}{\cyra}} {{\CYRA}{\cyrd}{\cyro}}},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {87--88},
     publisher = {mathdoc},
     number = {8},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1984_8_a20/}
}