Voir la notice de l'article provenant de la source Math-Net.Ru
@misc{KVANT_2014_4_a28, title = {{\guillemotleft}{\CYRP}{\cyro}{\cyrr}{\cyrt}{\cyrr}{\cyre}{\cyrt}{\guillemotright} {\cyrch}{\cyri}{\cyrs}{\cyrl}{\cyra} $\pi$}, journal = {Kvant}, pages = {1}, publisher = {mathdoc}, number = {4}, year = {2014}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2014_4_a28/} }
«Портрет» числа $\pi$. Kvant, no. 4 (2014). http://geodesic.mathdoc.fr/item/KVANT_2014_4_a28/