[3]
Influence of nonlinear incidence rates upon the behavior of SIRS epidemiological models[J] . Wei-min Liu,Simon A. Levin,Yoh Iwasa.Journal of Mathematical Biology . 1986 (2)
[3]
Influence of nonlinear incidence rates upon the behavior of SIRS epidemiological models[J] . Wei-min Liu,Simon A. Levin,Yoh Iwasa.Journal of Mathematical Biology . 1986 (2)