@article{10_4064_fm_107_2_81_98,
     author = {{\CYRV}. {\CYRM}{\cyra}{\cyrl}{\cyrery}{\cyrh}{\cyri}{\cyrn} and {\CYRV}. {\CYRU}{\cyrl}{\cyrsftsn}{\cyrya}{\cyrn}{\cyro}{\cyrv}},
     title = {{\CYRP}{\cyrr}{\cyro}{\cyrs}{\cyrt}{\cyrr}{\cyra}{\cyrn}{\cyrs}{\cyrt}{\cyrv}{\cyra} {\cyrs} {\cyre}{\cyrd}{\cyri}{\cyrn}{\cyrs}{\cyrt}{\cyrv}{\cyre}{\cyrn}{\cyrn}{\cyro}{\cyrishrt} {\cyrt}{\cyro}{\cyrch}{\cyrk}{\cyro}{\cyrishrt} {\cyrerev}{\cyrk}{\cyrs}{\cyrt}{\cyrr}{\cyre}{\cyrm}{\cyra}{\cyrl}{\cyrsftsn}{\cyrn}{\cyro}{\cyrishrt} {\cyrn}{\cyre}{\cyrs}{\cyrv}{\cyrya}{\cyrz}{\cyrn}{\cyro}{\cyrs}{\cyrt}{\cyri}},
     journal = {Fundamenta Mathematicae},
     pages = {81--98},
     publisher = {mathdoc},
     volume = {107},
     number = {2},
     year = {1980},
     doi = {10.4064/fm-107-2-81-98},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-107-2-81-98/}
}