@article{AIHPC_1992__9_3_337_0, author = {Ambrosetti, Antonio and Coti Zelati, Vittorio}, title = {Addendum to closed orbits of fixed energy for a class of N-body problems}, journal = {Annales de l'I.H.P. Analyse non lin\'eaire}, pages = {337--338}, publisher = {Gauthier-Villars}, volume = {9}, number = {3}, year = {1992}, zbl = {0771.70010}, mrnumber = {1168307}, language = {en}, url = {archive.numdam.org/item/AIHPC_1992__9_3_337_0/} }
Ambrosetti, A.; Coti Zelati, V. Addendum to closed orbits of fixed energy for a class of N-body problems. Annales de l'I.H.P. Analyse non linéaire, Tome 9 (1992) no. 3, pp. 337-338. http://archive.numdam.org/item/AIHPC_1992__9_3_337_0/