@article{CMUC_1986_27_2_a7,
     author = {Invernizzi, Sergio},
     title = {A note on nonuniform nonresonance for jumping nonlinearities},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {285--291},
     year = {1986},
     volume = {27},
     number = {2},
     mrnumber = {857548},
     zbl = {0603.34016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1986_27_2_a7/}
}