@article{EJDE_2012__2012__a69, author = {Alves, Maria J. and Assuncao, Ronaldo B. and Carriao, Paulo C. and Miyagaki, Olimpio H.}, title = {Existence of bound state solutions for degenerate singular perturbation problems with sign-changing potentials}, journal = {Electronic Journal of Differential Equations}, publisher = {mathdoc}, volume = {2012}, year = {2012}, language = {en}, url = {http://geodesic.mathdoc.fr/item/EJDE_2012__2012__a69/} }