@article{PIM_1977_N_S_21_35_a31,
     author = {{\CYRD}{\cyro}{\cyrb}{\cyrr}{\cyri}{\cyrv}{\cyro}{\cyrishrt} {\CYRZH}{\cyra}{\cyrr}{\cyrk}{\cyro}{\cyrv}},
     title = {{\CYRO}{\cyrd}{\cyrn}{\cyra} {{\CYRZ}{\cyra}{\cyrm}{\cyre}{\cyrt}{\cyrk}{\cyra}} {{\CYRO}} {{\CYRA}{\cyrs}{\cyrs}{\cyro}{\cyrc}{\cyri}{\cyra}{\cyrt}{\cyri}{\cyrv}{\cyrn}{\cyrery}{\cyrh}} {{\CYRV}} {{\CYRC}{\cyre}{\cyrl}{\cyro}{\cyrm}} {{\CYRS}{\cyri}{\cyrs}{\cyrt}{\cyre}{\cyrm}{\cyra}{\cyrh}} {n-{\CYRK}{\cyrv}{\cyra}{\cyrz}{\cyri}{\cyrg}{\cyrr}{\cyru}{\cyrp}{\cyrp}} {{\CYRN}{\cyra}} {Q={1,} 2, 3, 4}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {207 },
     publisher = {mathdoc},
     volume = {_N_S_21},
     number = {35},
     year = {1977},
     url = {http://geodesic.mathdoc.fr/item/PIM_1977_N_S_21_35_a31/}
}