@article{KVANT_2014_4_a4,
     author = {E. Epifanov},
     title = {{\guillemotleft}{\CYRP}{\cyro}{\cyrr}{\cyrt}{\cyrr}{\cyre}{\cyrt}{\guillemotright} {\cyrch}{\cyri}{\cyrs}{\cyrl}{\cyra} $\pi$},
     journal = {Kvant},
     pages = {31--37},
     publisher = {mathdoc},
     number = {4},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KVANT_2014_4_a4/}
}