Existence of solutions for a weighted p ( t ) -Laplacian impulsive integrodifferential system with multipoint and integral boundary value conditions. Dong, Rong; Guo, Yunrui; Zhao, Yuanzhang; Zhang, Qihu — 2010 Journal of Inequalities and Applications [electronic only]
A new extension theorem for concave operators. Peng, Jian-Wen; Rong, Wei-Dong; Yao, Jen-Chih — 2009 Fixed Point Theory and Applications [electronic only]