@article{DAN_1960_134_1_a40, author = {A. A. Nikitin}, title = {{\CYRP}{\cyro}{\cyrp}{\cyrr}{\cyra}{\cyrv}{\cyrk}{\cyri} {\cyrk}~{\cyrs}{\cyrt}{\cyra}{\cyrt}{\cyrsftsn}{\cyre} {``{\CYRO}{\cyrb}} {\cyro}{\cyrd}{\cyrn}{\cyro}{\cyrishrt} {\cyrv}{\cyro}{\cyrz}{\cyrm}{\cyro}{\cyrzh}{\cyrn}{\cyro}{\cyrishrt} {\cyro}{\cyrc}{\cyre}{\cyrn}{\cyrk}{\cyre} {\cyrt}{\cyre}{\cyrm}{\cyrp}{\cyre}{\cyrr}{\cyra}{\cyrt}{\cyru}{\cyrr} {\cyrg}{\cyro}{\cyrr}{\cyrya}{\cyrch}{\cyri}{\cyrh} {\cyrz}{\cyrv}{\cyre}{\cyrz}{\cyrd} {\cyrp}{\cyro} {\cyrh}{\cyra}{\cyrr}{\cyra}{\cyrk}{\cyrt}{\cyre}{\cyrr}{\cyru} {\cyrerev}{\cyrm}{\cyri}{\cyrs}{\cyrs}{\cyri}{\cyro}{\cyrn}{\cyrn}{\cyro}{\cyrg}{\cyro} {\cyrs}{\cyrp}{\cyre}{\cyrk}{\cyrt}{\cyrr}{\cyra} {N} {III''} }, journal = {Doklady Akademii Nauk}, pages = {8}, publisher = {mathdoc}, volume = {134}, number = {1}, year = {1960}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1960_134_1_a40/} }