Voir la notice de l'article provenant de la source Math-Net.Ru
@article{KVANT_2016_4_a4, author = {I. Akulich and V. Dubrovsky}, title = {{\CYRK}{\cyra}{\cyrm}{\cyre}{\cyrn}{\cyrsftsn} {\cyrv} $\pi$-{\cyro}{\cyrg}{\cyro}{\cyrr}{\cyro}{\cyrd}}, journal = {Kvant}, pages = {35--38}, publisher = {mathdoc}, number = {4}, year = {2016}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2016_4_a4/} }
I. Akulich; V. Dubrovsky. Камень в $\pi$-огород. Kvant, no. 4 (2016), pp. 35-38. http://geodesic.mathdoc.fr/item/KVANT_2016_4_a4/