@article{ARM_1978__14_2_a0,
     author = {Bajnov, Drumi Dimitrov and Milusheva, S. D.},
     title = {{\CYRP}{\cyrr}{\cyri}{\cyrm}{\cyre}{\cyrn}{\cyre}{\cyrn}{\cyri}{\cyre} {\cyrm}{\cyre}{\cyrt}{\cyro}{\cyrd}{\cyra} {\cyru}{\cyrs}{\cyrr}{\cyre}{\cyrd}{\cyrn}{\cyre}{\cyrn}{\cyri}{\cyrya} {\cyrk} {\cyro}{\cyrd}{\cyrn}{\cyro}{\cyrishrt} {\cyrd}{\cyrv}{\cyru}{\cyrh}{\cyrt}{\cyro}{\cyrch}{\cyre}{\cyrch}{\cyrn}{\cyro}{\cyrishrt} {\cyrk}{\cyrr}{\cyra}{\cyre}{\cyrv}{\cyro}{\cyrishrt} {\cyrz}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyre} {\cyrd}{\cyrl}{\cyrya} {\cyrn}{\cyre}{\cyrl}{\cyri}{\cyrn}{\cyre}{\cyrishrt}{\cyrn}{\cyrery}{\cyrh} {\cyrs}{\cyri}{\cyrs}{\cyrt}{\cyre}{\cyrm} {\cyri}{\cyrn}{\cyrt}{\cyre}{\cyrg}{\cyrr}{\cyro}-{\cyrd}{\cyri}{\cyrf}{\cyrf}{\cyre}{\cyrr}{\cyre}{\cyrn}{\cyrc}{\cyri}{\cyra}{\cyrl}{\cyrsftsn}{\cyrn}{\cyrery}{\cyrh} {\cyru}{\cyrr}{\cyra}{\cyrv}{\cyrn}{\cyre}{\cyrn}{\cyri}{\cyrishrt}},
     journal = {Archivum mathematicum},
     pages = {61--74},
     publisher = {mathdoc},
     volume = {14},
     number = {2},
     year = {1978},
     mrnumber = {512746},
     zbl = {0462.45016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ARM_1978__14_2_a0/}
}