中国科学院数学与系统科学研究院期刊网
JSSC
NON-EXISTENCE OF SINGULAR CYCLES IN AQUADRIC DIFFERENTIAL SYSTEM WITH FINE FOCUS OF ORDER THREE
LU Gang;LIANG Zhaojun
NON-EXISTENCE OF SINGULAR CYCLES IN AQUADRIC DIFFERENTIAL SYSTEM WITH FINE FOCUS OF ORDER THREE
LU Gang;LIANG Zhaojun
Journal of Systems Science and Complexity . 1994, (2): 133 -139 .