Voir la notice de l'article provenant de la source Math-Net.Ru
@article{KVANT_2020_5_a6, author = {G. Merzon}, title = {{\CYRK}{\cyra}{\cyrl}{\cyre}{\cyrishrt}{\cyrd}{\cyro}{\cyrs}{\cyrk}{\cyro}{\cyrp} {\cyrf}{\cyro}{\cyrr}{\cyrm}{\cyru}{\cyrl} {\cyrd}{\cyrl}{\cyrya}~$\pi$}, journal = {Kvant}, pages = {32--33}, publisher = {mathdoc}, number = {5}, year = {2020}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2020_5_a6/} }
G. Merzon. Калейдоскоп формул для~$\pi$. Kvant, no. 5 (2020), pp. 32-33. http://geodesic.mathdoc.fr/item/KVANT_2020_5_a6/