Voir la notice de l'article provenant de la source Math-Net.Ru
@article{KVANT_2012_3_a7, author = {A. Akopyan}, title = {{\CYRG}{\cyre}{\cyro}{\cyrm}{\cyre}{\cyrt}{\cyrr}{\cyri}{\cyrya} {\cyrk}{\cyra}{\cyrr}{\cyrd}{\cyri}{\cyro}{\cyri}{\cyrd}{\cyrery}}, journal = {Kvant}, pages = {39--41}, publisher = {mathdoc}, number = {3}, year = {2012}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2012_3_a7/} }
A. Akopyan. Геометрия кардиоиды. Kvant, no. 3 (2012), pp. 39-41. http://geodesic.mathdoc.fr/item/KVANT_2012_3_a7/