Li, C., Li, J., Ma, Z., and Zhu, H., 2014: Canard phenomenon for an SIS epidemic model with nonlinear incidence. Journal of Mathematical Analysis and Applications, Vol. 420 (2), p. 987-1004
Li, C., Li, J., Ma, Z., and Zhu, H., 2014: Canard phenomenon for an SIS epidemic model with nonlinear incidence. Journal of Mathematical Analysis and Applications, Vol. 420 (2), p. 987-1004