Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1996_60_6_a14, author = {A. A. Zaitsev}, title = {Concerning natural {Hamiltonian} systems integrable in elliptic coordinates}, journal = {Matemati\v{c}eskie zametki}, pages = {924--929}, publisher = {mathdoc}, volume = {60}, number = {6}, year = {1996}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1996_60_6_a14/} }
A. A. Zaitsev. Concerning natural Hamiltonian systems integrable in elliptic coordinates. Matematičeskie zametki, Tome 60 (1996) no. 6, pp. 924-929. http://geodesic.mathdoc.fr/item/MZM_1996_60_6_a14/