中国科学院数学与系统科学研究院期刊网
Bifurcations and Chaos in Duffing Equation with Damping and External Excitations
Mei-xiang CAI, Jian-ping YANG, Jin DENG
Acta Mathematicae Applicatae Sinica(English Series) . 2014, (2): 483 -504 .  DOI: 10.1007/s10255-014-0284-0