@article{10_21136_CMJ_1967_100796,
     author = {Sova, Miroslav},
     title = {{\CYRP}{\cyrr}{\cyri}{\cyrm}{\cyri}{\cyrt}{\cyri}{\cyrv}{\cyrn}{\cyro}{\cyrs}{\cyrt}{\cyrsftsn} {\cyrf}{\cyru}{\cyrn}{\cyrk}{\cyrc}{\cyri}{\cyrishrt} {\cyrv} {\cyrl}{\cyri}{\cyrn}{\cyre}{\cyrishrt}{\cyrn}{\cyrery}{\cyrh} {\cyrt}{\cyro}{\cyrp}{\cyro}{\cyrl}{\cyro}{\cyrg}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyri}{\cyrh} {\cyrp}{\cyrr}{\cyro}{\cyrs}{\cyrt}{\cyrr}{\cyra}{\cyrn}{\cyrs}{\cyrt}{\cyrv}{\cyra}{\cyrh}},
     journal = {Czechoslovak Mathematical Journal},
     pages = {471--481},
     publisher = {mathdoc},
     volume = {17},
     number = {4},
     year = {1967},
     doi = {10.21136/CMJ.1967.100796},
     mrnumber = {0225134},
     zbl = {0189.14602},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1967.100796/}
}