@article{IPM_1988__7_3_68978, author = {{\CYRE}.{\CYRA}. {\CYRB}{\cyre}{\cyrg}{\cyro}{\cyrv}{\cyra}{\cyrt}{\cyro}{\cyrv} and {\CYRA}.{\CYRV}. {\CYRL}{\cyra}{\cyrp}{\cyri}{\cyrn}}, title = {{\CYRD}{\cyri}{\cyrf}{\cyrf}{\cyru}{\cyrz}{\cyri}{\cyro}{\cyrn}{\cyrn}{\cyra}{\cyrya} {\cyra}{\cyrp}{\cyrp}{\cyrr}{\cyro}{\cyrk}{\cyrs}{\cyri}{\cyrm}{\cyra}{\cyrc}{\cyri}{\cyrya} {\cyrv} {\cyrz}{\cyra}{\cyrm}{\cyrk}{\cyrn}{\cyru}{\cyrt}{\cyrery}{\cyrh} {\cyrs}{\cyri}{\cyrs}{\cyrt}{\cyre}{\cyrm}{\cyra}{\cyrh} {\cyrm}{\cyra}{\cyrs}{\cyrs}{\cyro}{\cyrv}{\cyro}{\cyrg}{\cyro} {\cyro}{\cyrb}{\cyrs}{\cyrl}{\cyru}{\cyrzh}{\cyri}{\cyrv}{\cyra}{\cyrn}{\cyri}{\cyrya}}, journal = {Issledovanija po prikladnoj matematike}, pages = {95--102}, publisher = {mathdoc}, volume = {7}, number = {3}, year = {1988}, zbl = {0665.60099}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IPM_1988__7_3_68978/} }