中国科学院数学与系统科学研究院期刊网
JSSC
GLOBAL PHASE-PORTRAITS OF PLANE HOMOGENEOUS POIYNOMIAL VECTOR FIELDS AND STABILITY OF THE ORIGIN
YANG Xiaojing
GLOBAL PHASE-PORTRAITS OF PLANE HOMOGENEOUS POIYNOMIAL VECTOR FIELDS AND STABILITY OF THE ORIGIN
YANG Xiaojing
Journal of Systems Science and Complexity . 1997, (1): 33 -040 .