TY - JOUR AU - Lin Li AU - Shapour Heidarkhani TI - Existence of three solutions to a double eigenvalue problem for the $p$-biharmonic equation JO - Annales Polonici Mathematici PY - 2012 SP - 71 EP - 80 VL - 104 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ap104-1-5/ DO - 10.4064/ap104-1-5 LA - en ID - 10_4064_ap104_1_5 ER -