A unified optimality condition for eigenvalue problems. - Wen Bin Liu; Julio E. Rubio (Kybernetika, 1993)

Solvability of p-Laplace equations subject to three-point boundary value problems. - Jian Jun Zhang 003; Wen Bin Liu; Tai Yong Chen; Hui Xing Zhang (Appl. Math. Comput., 2006)