@article{article746b5280,
title   = {Examples with minimal number of brake orbits and homoclinics in annular potential regions},
author = {Giambó, Roberto and Giannoni, Fabio and Piccione, Paolo},
year = {2014},
doi = {10.1016/j.jde.2014.01.008},
journal   = {Journal of Differential Equations}
}