@article{AIHPC_1990__7_5_477_0, author = {Coti Zelati, Vittorio}, title = {Periodic solutions for {N-body} type problems}, journal = {Annales de l'I.H.P. Analyse non lin\'eaire}, pages = {477--492}, publisher = {Gauthier-Villars}, volume = {7}, number = {5}, year = {1990}, mrnumber = {1138534}, zbl = {0723.70010}, language = {en}, url = {http://www.numdam.org/item/AIHPC_1990__7_5_477_0/} }
Coti Zelati, Vittorio. Periodic solutions for N-body type problems. Annales de l'I.H.P. Analyse non linéaire, Tome 7 (1990) no. 5, pp. 477-492. http://www.numdam.org/item/AIHPC_1990__7_5_477_0/
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