@article{RLIN_1997_9_8_4_a1,
     author = {Berti, Massimiliano},
     title = {Heteroclinic solutions for perturbed second order systems},
     journal = {Atti della Accademia nazionale dei Lincei. Rendiconti Lincei. Matematica e applicazioni},
     pages = {251--262},
     publisher = {mathdoc},
     volume = {Ser. 9, 8},
     number = {4},
     year = {1997},
     zbl = {0931.37018},
     mrnumber = {1416171},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RLIN_1997_9_8_4_a1/}
}