@article{MT_2020_23_1_a7, author = {M. I. Marchuk}, title = {{\CYRI}{\cyrn}{\cyrd}{\cyre}{\cyrk}{\cyrs}{\cyrn}{\cyro}{\cyre} {\cyrm}{\cyrn}{\cyro}{\cyrzh}{\cyre}{\cyrs}{\cyrt}{\cyrv}{\cyro} {\cyra}{\cyrv}{\cyrt}{\cyro}{\cyru}{\cyrs}{\cyrt}{\cyro}{\cyrishrt}{\cyrch}{\cyri}{\cyrv}{\cyrery}{\cyrh} {\cyru}{\cyrp}{\cyro}{\cyrr}{\cyrya}{\cyrd}{\cyro}{\cyrch}{\cyre}{\cyrn}{\cyrn}{\cyrery}{\cyrh} {\cyra}{\cyrb}{\cyre}{\cyrl}{\cyre}{\cyrv}{\cyrery}{\cyrh} {\cyrg}{\cyrr}{\cyru}{\cyrp}{\cyrp}}, journal = {Matemati\v{c}eskie trudy}, pages = {169--176}, publisher = {mathdoc}, volume = {23}, number = {1}, year = {2020}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MT_2020_23_1_a7/} }