@misc{KVANT_2011_3_a7,
     title = {{\CYRZ}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyri} {{\CYRM}2221{\textendash}{\CYRM}2228,} {{\CYRF}2228{\textendash}{\CYRF}2234}},
     journal = {Kvant},
     pages = {23--24},
     publisher = {mathdoc},
     number = {3},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2011_3_a7/}
}