@article{MAN_1980__248_163380,
     author = {R\"udiger Landes and Vesa Mustonen},
     title = {On {Pseudo-monotone} {Operators} and {Nonlinear} {Noncoercive}  {Variational} {Problems} on {Unbounded} {Domains.}},
     journal = {Mathematische Annalen},
     pages = {241--246},
     year = {1980},
     volume = {248},
     zbl = {0416.35072},
     url = {http://geodesic.mathdoc.fr/item/MAN_1980__248_163380/}
}