@article{MS_1991__182_11_a0,
     author = {{\CYRR}.{\CYRS}. {\CYRV}{\cyra}{\cyrr}{\cyrg}{\cyra} and {\CYRA}. {\CYRR}{\cyru}{\cyrt}{\cyrt}{\cyra}{\cyrn} and {\CYRA}.{\CYRD}{\cyrzh}. {\CYRK}{\cyra}{\cyrr}{\cyrp}{\cyre}{\cyrn}{\cyrt}{\cyre}{\cyrr}},
     title = {{\CYRCH}{\cyri}{\cyrs}{\cyrl}{\cyre}{\cyrn}{\cyrn}{\cyrery}{\cyre} {\cyrr}{\cyre}{\cyrz}{\cyru}{\cyrl}{\cyrsftsn}{\cyrt}{\cyra}{\cyrt}{\cyrery} {\cyro} {\cyrn}{\cyra}{\cyri}{\cyrl}{\cyru}{\cyrch}{\cyrsh}{\cyri}{\cyrh} {\cyrr}{\cyra}{\cyrv}{\cyrn}{\cyro}{\cyrm}{\cyre}{\cyrr}{\cyrn}{\cyrery}{\cyrh} {\cyrr}{\cyra}{\cyrc}{\cyri}{\cyro}{\cyrn}{\cyra}{\cyrl}{\cyrsftsn}{\cyrn}{\cyrery}{\cyrh} {\cyra}{\cyrp}{\cyrp}{\cyrr}{\cyro}{\cyrk}{\cyrs}{\cyri}{\cyrm}{\cyra}{\cyrc}{\cyri}{\cyrya}{\cyrh} {\cyrf}{\cyru}{\cyrn}{\cyrk}{\cyrc}{\cyri}{\cyri} $\vert {} x \vert $ {\cyrn}{\cyra} {\cyro}{\cyrt}{\cyrr}{\cyre}{\cyrz}{\cyrk}{\cyre} [-1,1]},
     journal = {Matemati\v{c}eskij sbornik},
     pages = {1523--1541},
     publisher = {mathdoc},
     volume = {182},
     number = {11},
     year = {1991},
     zbl = {0739.65010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MS_1991__182_11_a0/}
}