Periodic solutions of some problems of 3-body type
Séminaire Équations aux dérivées partielles (Polytechnique) dit aussi "Séminaire Goulaouic-Schwartz" (1988-1989), Exposé no. 21, 11 p. 
@article{SEDP_1988-1989____A22_0,
     author = {Bahri, Abbes and Rabinowitz, Paul-H.},
     title = {Periodic solutions of some problems of $3$-body type},
     journal = {S\'eminaire \'Equations aux d\'eriv\'ees partielles (Polytechnique) dit aussi "S\'eminaire Goulaouic-Schwartz"},
     note = {talk:21},
     publisher = {Ecole Polytechnique, Centre de Math\'ematiques},
     year = {1988-1989},
     zbl = {0704.58041},
     mrnumber = {1032297},
     language = {en},
     url = {archive.numdam.org/item/SEDP_1988-1989____A22_0/}
}
Bahri, A.; Rabinowitz, P. H. Periodic solutions of some problems of $3$-body type. Séminaire Équations aux dérivées partielles (Polytechnique) dit aussi "Séminaire Goulaouic-Schwartz" (1988-1989), Exposé no. 21, 11 p. http://archive.numdam.org/item/SEDP_1988-1989____A22_0/

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