@article{702406,
     title = {Orlicz- Sobolev spaces and nonlinear elliptic boundary value problems},
     booktitle = {Nonlinear Analysis, Function Spaces and Applications},
     series = {GDML\_Books},
     publisher = {BSB B. G. Teubner Verlagsgesellschaft},
     address = {Leipzig},
     year = {1979},
     pages = {59-94},
     mrnumber = {MR0578910},
     zbl = {0417.46033},
     url = {http://dml.mathdoc.fr/item/702406}
}

Gossez, Jean-Pierre. Orlicz- Sobolev spaces and nonlinear elliptic boundary value problems, dans Nonlinear Analysis, Function Spaces and Applications, GDML_Books,  (1979), pp. 59-94. http://gdmltest.u-ga.fr/item/702406/