TY - JOUR AU - Liang, Sihua AU - Zhang, Jihui AU - Wang, Zhiyong TI - Existence of countably many positive solutions for \(n\)th-order \(m\)-point boundary-value problems on time scales JO - Electronic journal of differential equations PY - 2008 VL - 2008 UR - http://geodesic.mathdoc.fr/item/EJDE_2008__2008__a94/ LA - en ID - EJDE_2008__2008__a94 ER -