@article{EJDE_2002__2002__a99,
     author = {Amster,  Pablo and De N\'apoli,  Pablo and Mariani,  Maria Cristina},
     title = {Existence of solutions for elliptic systems with critical {Sobolev} exponent},
     journal = {Electronic journal of differential equations},
     year = {2002},
     volume = {2002},
     zbl = {1068.35511},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2002__2002__a99/}
}