@article{EJDE_2001__2001__a4,
     author = {Lazzo,  Monica},
     title = {Multiple solutions to some singular nonlinear {Schr\"odinger} equations},
     journal = {Electronic journal of differential equations},
     year = {2001},
     volume = {2001},
     zbl = {0964.35141},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2001__2001__a4/}
}