中国科学院数学与系统科学研究院期刊网
Complex Dynamics in Physical Pendulum Equation with Suspension Axis Vibrations
Xiang-ling Fu, Jin Deng, Zhu-jun Jing
Acta Mathematicae Applicatae Sinica(English Series) . 2010, (1): 55 -78 .  DOI: 10.1007/s10255-008-8276-6