@article{ARM_2000__36_5_a20,
     author = {Ne\v{c}esal, Petr},
     title = {On the resonance problem for the $\text {4}^{\text {th}}$ order ordinary differential equations, {Fu\v{c}{\'\i}k's} spectrum},
     journal = {Archivum mathematicum},
     pages = {531--542},
     publisher = {mathdoc},
     volume = {36},
     number = {5},
     year = {2000},
     mrnumber = {1822823},
     zbl = {1090.34521},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_2000__36_5_a20/}
}