@article{EJDE_2003__2003__a15,
     author = {Poppenberg,  Markus},
     title = {Nash-Moser techniques for nonlinear boundary-value problems},
     journal = {Electronic journal of differential equations},
     year = {2003},
     volume = {2003},
     zbl = {1035.35055},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2003__2003__a15/}
}