@article{CMUC_1974__15_2_a4,
     author = {Fu\v{c}{\'\i}k, Svatopluk},
     title = {Further remark on a theorem by {E.} {M.} {Landesman} and {A.} {C.} {Lazer}},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {259--271},
     publisher = {mathdoc},
     volume = {15},
     number = {2},
     year = {1974},
     mrnumber = {0348260},
     zbl = {0282.47022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1974__15_2_a4/}
}