@article{KVANT_2009_6_a7,
     author = {S. Dorichenko and M. Prasolov},
     title = {{\CYRI}{\cyrg}{\cyrr}{\cyrery}},
     journal = {Kvant},
     pages = {32--33},
     publisher = {mathdoc},
     number = {6},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2009_6_a7/}
}