TY - JOUR AU - Qingliu Yao TI - Positive solutions to a class of elastic beam equations with semipositone nonlinearity JO - Annales Polonici Mathematici PY - 2010 SP - 35 EP - 50 VL - 97 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ap97-1-3/ DO - 10.4064/ap97-1-3 LA - en ID - 10_4064_ap97_1_3 ER -