中国科学院数学与系统科学研究院期刊网
Asymptotic Behavior of Solutions to a Class of Systems of Delay Differential Equations
Tai Shan YI, Li Hong HUANG
Acta Mathematica Sinica . 2007, (8): 1375 -1384 .  DOI: 10.1007/s10114-005-0932-7