Voir la notice de l'article provenant de la source Math-Net.Ru
@misc{KVANT_2012_3_a22, title = {{\CYRK}{\cyro}{\cyrg}{\cyrd}{\cyra} {\cyro}{\cyrr}{\cyrb}{\cyri}{\cyrt}{\cyra} -- {\cyrerev}{\cyrl}{\cyrl}{\cyri}{\cyrp}{\cyrs}}, journal = {Kvant}, pages = {58}, publisher = {mathdoc}, number = {3}, year = {2012}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2012_3_a22/} }
Когда орбита -- эллипс. Kvant, no. 3 (2012). http://geodesic.mathdoc.fr/item/KVANT_2012_3_a22/