TY - JOUR TI - A Variational Characterization of the Fucik Spectrum and Applications JO - Revista colombiana de matematicas PY - 2010 SP - 23 EP - 40 VL - 44 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RCM_2010_44_1_a2/ ID - RCM_2010_44_1_a2 ER -