@article{EJDE_1997__1997__a7,
     author = {Alves,  C.O.},
     title = {Multiple positive solutions for equations involving critical {Sobolev} exponent in {\(\mathbb{R}^} {N\)}},
     journal = {Electronic journal of differential equations},
     year = {1997},
     volume = {1997},
     zbl = {0886.35056},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_1997__1997__a7/}
}