TY - JOUR AU - Zhang, Xuemei TI - Positive solutions for a class of nonresonant boundary-value problems JO - Electronic Journal of Differential Equations PY - 2007 VL - 2007 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EJDE_2007__2007__a155/ LA - en ID - EJDE_2007__2007__a155 ER -