中国科学院数学与系统科学研究院期刊网
Periodic Solutions for Second Order p-Laplacian Differential Equation with a Deviating Argument
Shi Ping LU(1), Wei Gao GE(2)
Acta Mathematica Sinica, Chinese Series . 2005, (5): 841 -850 .  DOI: 10.12386/A2005sxxb0102