中国科学院数学与系统科学研究院期刊网
Linearized Oscillation for Nonlinar Delay Difference Equations
Xian Hua TANG(1),Jian She YU(2
Acta Mathematica Sinica, Chinese Series . 2002, (3): 517 -528 .  DOI: 10.12386/A2002sxxb0066