@misc{KVANT_2009_6_a18,
     title = {{\CYRZ}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyri}},
     journal = {Kvant},
     pages = {61},
     year = {2009},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2009_6_a18/}
}