@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},
     year = {2012},
     volume = {2012},
     zbl = {1259.35075},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2012__2012__a69/}
}