@misc{KVANT_2007_6_a17,
     title = {{\CYRK}{\CYRM}{\CYRSH}},
     journal = {Kvant},
     pages = {56},
     publisher = {mathdoc},
     number = {6},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2007_6_a17/}
}