中国科学院数学与系统科学研究院期刊网
Analysis of an Age Structured SEIRS Epidemic Model with Varying
Xue-Zhi Li, Geni Gupur, Guang-Tian Zhu
Analysis of an Age Structured SEIRS Epidemic Model with Varying
Xue-Zhi Li, Geni Gupur, Guang-Tian Zhu
应用数学学报(英文版) . 2004, (1): 25 -36 .