@article{ARM_1987__23_1_a4,
     author = {Nguyen Dong Anh},
     title = {{\CYRI}{\cyrs}{\cyrs}{\cyrl}{\cyre}{\cyrd}{\cyro}{\cyrv}{\cyra}{\cyrn}{\cyri}{\cyre} {\cyrv}{\cyrl}{\cyri}{\cyrya}{\cyrn}{\cyri}{\cyrya} {\cyrr}{\cyra}{\cyrz}{\cyrl}{\cyri}{\cyrch}{\cyrn}{\cyrery}{\cyrh} {\cyrt}{\cyri}{\cyrp}{\cyro}{\cyrv} {\cyrp}{\cyre}{\cyrr}{\cyri}{\cyro}{\cyrd}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyro}{\cyrg}{\cyro} {\cyri} {\cyrs}{\cyrl}{\cyru}{\cyrch}{\cyra}{\cyrishrt}{\cyrn}{\cyro}{\cyrg}{\cyro} {\cyrv}{\cyro}{\cyrz}{\cyrb}{\cyru}{\cyrzh}{\cyrd}{\cyre}{\cyrn}{\cyri}{\cyrya}  {\cyrn}{\cyra} {\cyrs}{\cyri}{\cyrs}{\cyrt}{\cyre}{\cyrm}{\cyru}  {{\CYRV}{\cyra}{\cyrn}-{\cyrd}{\cyre}{\cyrr}-{\cyrp}{\cyro}{\cyrl}{\cyrya}}},
     journal = {Archivum mathematicum},
     pages = {29--34},
     publisher = {mathdoc},
     volume = {23},
     number = {1},
     year = {1987},
     mrnumber = {930545},
     zbl = {0850.70263},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ARM_1987__23_1_a4/}
}