Positive solutions of nth order m-point boundary value problem. - Jingbao Yang; Zhongli Wei (Appl. Math. Comput., 2008)

Existence of symmetric positive solutions for a class of Sturm-Liouville-like boundary value problems. - Jingbao Yang; Zhongli Wei; Ke Liu (Appl. Math. Comput., 2009)

On existence of positive solutions of Sturm-Liouville boundary value problems for a nonlinear singular differential system. - Jingbao Yang; Zhongli Wei (Appl. Math. Comput., 2011)