@article{KVANT_2009_4_a9,
     author = {A. Spivak},
     title = {{\CYRP}{\cyro}{\cyrd} {\cyrd}{\cyra}{\cyrn}{\cyrn}{\cyrery}{\cyrm} {\cyru}{\cyrg}{\cyrl}{\cyro}{\cyrm}},
     journal = {Kvant},
     pages = {32--33},
     publisher = {mathdoc},
     number = {4},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2009_4_a9/}
}