TY - JOUR AU - Nečesal, Petr TI - On the resonance problem for the $\text {4}^{\text {th}}$ order ordinary differential equations, Fučík's spectrum JO - Archivum mathematicum PY - 2000 SP - 531 EP - 542 VL - 36 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ARM_2000__36_5_a20/ LA - en ID - ARM_2000__36_5_a20 ER -