%0 Journal Article %A Hui Cao %A Dongxue Yan %A Xiaxia Xu %T Hopf bifurcation for an SIR model with age structure %J Mathematical modelling of natural phenomena %D 2021 %V 16 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1051/mmnp/2021003/ %R 10.1051/mmnp/2021003 %G en %F MMNP_2021_16_a26