中国科学院数学与系统科学研究院期刊网
Li-Yorke Chaos System Without a Proper Subsystem Being Li-Yorke Chaos
Xiao Yi WANG, Yu HUANG
Acta Mathematica Sinica, Chinese Series . 2012, (4): 749 -756 .  DOI: 10.12386/A2012sxxb0072