@article{ZNSL_1971_22_a21,
     author = {V. P. Havin},
     title = {{\CYRO}~{\cyrf}{\cyra}{\cyrk}{\cyrt}{\cyro}{\cyrr}{\cyri}{\cyrz}{\cyra}{\cyrc}{\cyri}{\cyri} {\cyra}{\cyrn}{\cyra}{\cyrl}{\cyri}{\cyrt}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyri}{\cyrh} {\cyrf}{\cyru}{\cyrn}{\cyrk}{\cyrc}{\cyri}{\cyrishrt}, {\cyrg}{\cyrl}{\cyra}{\cyrd}{\cyrk}{\cyri}{\cyrh} {\cyrv}{\cyrp}{\cyrl}{\cyro}{\cyrt}{\cyrsftsn} {\cyrd}{\cyro} {\cyrg}{\cyrr}{\cyra}{\cyrn}{\cyri}{\cyrc}{\cyrery}},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {202--205},
     publisher = {mathdoc},
     volume = {22},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1971_22_a21/}
}