中国科学院数学与系统科学研究院期刊网
An SIS Epidemic Model with Stage Structure and a Delay
Yan Ni XIAO, Lan Sun CHEN
An SIS Epidemic Model with Stage Structure and a Delay
Yan Ni XIAO, Lan Sun CHEN
应用数学学报(英文版) . 2002, (4): 607 -618 .