@article{10_1017_S0017089502030045,
     author = {Vitillaro, Enzo},
     title = {A potential well theory for the wave equation with nonlinear source and boundary damping terms},
     journal = {Glasgow mathematical journal},
     pages = {375--395},
     year = {2002},
     volume = {44},
     number = {3},
     doi = {10.1017/S0017089502030045},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089502030045/}
}