TY - JOUR AU - Hong-Yan Xu AU - Cai-Feng Yi TI - Zeros of solutions of certain higher order linear differential equations JO - Annales Polonici Mathematici PY - 2010 SP - 123 EP - 136 VL - 97 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ap97-2-2/ DO - 10.4064/ap97-2-2 LA - en ID - 10_4064_ap97_2_2 ER -