@article{MS_1976__143_3_a1, author = {{\CYRYU}.{\CYRA}. {\CYRD}{\cyrr}{\cyro}{\cyrz}{\cyrd}}, title = {{\CYRI}{\cyrd}{\cyre}{\cyra}{\cyrl}{\cyrery} {\cyrk}{\cyro}{\cyrm}{\cyrm}{\cyru}{\cyrt}{\cyra}{\cyrt}{\cyri}{\cyrv}{\cyrn}{\cyrery}{\cyrh} {\cyrk}{\cyro}{\cyrl}{\cyre}{\cyrc}}, journal = {Matemati\v{c}eskij sbornik}, pages = {334--348}, publisher = {mathdoc}, volume = {143}, number = {3}, year = {1976}, zbl = {0339.13015}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1976__143_3_a1/} }