中国科学院数学与系统科学研究院期刊网
Existence and Uniqueness of Periodic Solutions for a Class of First Order Neutral Functional Differential Equations
Bing Wen LIU(1); Li HOng HUANG
Acta Mathematica Sinica, Chinese Series . 2006, (6): 1347 -135 .  DOI: 10.12386/A2006sxxb0170