@article{EJDE_2011__2011__a13,
     author = {Zeddini,  Noureddine},
     title = {Existence of positive solutions for some nonlinear elliptic systems on the half space},
     journal = {Electronic journal of differential equations},
     year = {2011},
     volume = {2011},
     zbl = {1221.35140},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2011__2011__a13/}
}