@article{VMUMM_1967_6_a5,
     author = {S. S. Grigoryan},
     title = {{\CYRO} {\cyrr}{\cyra}{\cyrb}{\cyro}{\cyrt}{\cyra}{\cyrh} {{\CYRI}{\cyrn}{\cyrs}{\cyrt}{\cyri}{\cyrt}{\cyru}{\cyrt}{\cyra}} {\cyrm}{\cyre}{\cyrh}{\cyra}{\cyrn}{\cyri}{\cyrk}{\cyri} {{\CYRM}{\cyro}{\cyrs}{\cyrk}{\cyro}{\cyrv}{\cyrs}{\cyrk}{\cyro}{\cyrg}{\cyro}} {\cyru}{\cyrn}{\cyri}{\cyrv}{\cyre}{\cyrr}{\cyrs}{\cyri}{\cyrt}{\cyre}{\cyrt}{\cyra}},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {61--69},
     publisher = {mathdoc},
     number = {6},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1967_6_a5/}
}