Lou, LijunGroup by: Item Type | No Grouping Jump to: Article Number of items: 1. ArticleLou, Lijun and Zhao, Xiao-Qiang (2009) Threshold dynamics in a time-delayed periodic sis epidemic model. Discrete and Continuous Dynamical Systems. Series B , 126 (1). pp. 169-186. ISSN 1553-524X |