中国科学院数学与系统科学研究院期刊网
Global Existence and Uniqueness, Oscillation and Nonoscillation of Impulsive Delay Differential Equations
JianHua Shen
Acta Mathematica Sinica, Chinese Series . 1997, (1): 53 -59 .  DOI: 10.12386/A1997sxxb0007