Homoclinic orbits for a class of infinite dimensional hamiltonian systems
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Série 4, Tome 24 (1997) no. 2, p. 367-393 
@article{ASNSP_1997_4_24_2_367_0,
     author = {Cl\'ement, Philippe and Felmer, Patricio L. and Mitidieri, Enzo},
     title = {Homoclinic orbits for a class of infinite dimensional hamiltonian systems},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     publisher = {Scuola normale superiore},
     volume = {Ser. 4, 24},
     number = {2},
     year = {1997},
     pages = {367-393},
     zbl = {0902.35051},
     mrnumber = {1487960},
     language = {en},
     url = {http://www.numdam.org/item/ASNSP_1997_4_24_2_367_0}
}

Clément, Philippe; Felmer, Patricio; Mitidieri, Enzo. Homoclinic orbits for a class of infinite dimensional hamiltonian systems. Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Série 4, Tome 24 (1997) no. 2, pp. 367-393. http://www.numdam.org/item/ASNSP_1997_4_24_2_367_0/

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