@Article{ FusGroNov18, author = { Fusco, Giorgio and Gronchi, Giovanni Federico and Novaga, Matteo }, title = { Existence of periodic orbits near heteroclinic connections }, journal = { Minimax Theory Appl. }, year = { 2019 }, volume = { 4 }, number = { 1 }, pages = { 113-149 }, URL = { http://cvgmt.sns.it/paper/3882/ }, note = { cvgmt preprint} }