@article{MZ_1978__164_172762,
     author = {Peter Hess and Bernhard Ruf},
     title = {On a {Superlinear} {Elliptic} {Boundary} {Value} {Problem.}},
     journal = {Mathematische Zeitschrift},
     pages = {9--14},
     publisher = {mathdoc},
     volume = {164},
     year = {1978},
     zbl = {0391.35034},
     url = {http://geodesic.mathdoc.fr/item/MZ_1978__164_172762/}
}