@article{CMUC_1989__30_3_a0,
     author = {Boccardo, Lucio and Dr\'abek, Pavel and Ku\v{c}era, Milan},
     title = {Landesman-Lazer conditions for strongly nonlinear boundary value problems},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {411--427},
     publisher = {mathdoc},
     volume = {30},
     number = {3},
     year = {1989},
     mrnumber = {1031859},
     zbl = {0706.35051},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1989__30_3_a0/}
}