@article{IPM_1989__9_6_69008,
     author = {{\CYRI}.{\CYRYA}. {\CYRZ}{\cyra}{\cyrb}{\cyro}{\cyrt}{\cyri}{\cyrn}},
     title = {{\CYRK} {\cyrv}{\cyro}{\cyrp}{\cyrr}{\cyro}{\cyrs}{\cyru} {\cyro} {\cyrv}{\cyrery}{\cyrb}{\cyro}{\cyrr}{\cyre} {\cyrn}{\cyra}{\cyrp}{\cyrr}{\cyra}{\cyrv}{\cyrl}{\cyre}{\cyrn}{\cyri}{\cyrishrt} {\cyrs}{\cyrp}{\cyru}{\cyrs}{\cyrk}{\cyra} {\cyrv} {\cyrz}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyra}{\cyrh} {\cyrb}{\cyre}{\cyrz}{\cyru}{\cyrs}{\cyrl}{\cyro}{\cyrv}{\cyrn}{\cyro}{\cyrishrt} {\cyrm}{\cyri}{\cyrn}{\cyri}{\cyrm}{\cyri}{\cyrz}{\cyra}{\cyrc}{\cyri}{\cyri} {\cyrf}{\cyru}{\cyrn}{\cyrk}{\cyrc}{\cyri}{\cyrishrt}},
     journal = {Issledovanija po prikladnoj matematike},
     pages = {37--42},
     publisher = {mathdoc},
     volume = {9},
     number = {6},
     year = {1989},
     zbl = {0695.49027},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IPM_1989__9_6_69008/}
}