@article{10_21136_CMJ_1969_100875,
     author = {Vaisman, Izu},
     title = {{\CYRK} {\cyrg}{\cyre}{\cyro}{\cyrm}{\cyre}{\cyrt}{\cyrr}{\cyri}{\cyri} {\cyrm}{\cyrn}{\cyro}{\cyrg}{\cyro}{\cyro}{\cyrb}{\cyrr}{\cyra}{\cyrz}{\cyri}{\cyri} {\cyrf}{\cyrl}{\cyra}{\cyrg}{\cyro}{\cyrv} {\cyrv} {\cyrs}{\cyri}{\cyrm}{\cyrp}{\cyrl}{\cyre}{\cyrk}{\cyrt}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyro}{\cyrm} {\cyrp}{\cyrr}{\cyro}{\cyrs}{\cyrt}{\cyrr}{\cyra}{\cyrn}{\cyrs}{\cyrt}{\cyrv}{\cyre}. {II}},
     journal = {Czechoslovak Mathematical Journal},
     pages = {60--66},
     publisher = {mathdoc},
     volume = {19},
     number = {1},
     year = {1969},
     doi = {10.21136/CMJ.1969.100875},
     mrnumber = {0242072},
     zbl = {0175.18702},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1969.100875/}
}