Backward bifurcation analysis of epidemiological model with partial immunity. - Roumen Anguelov; Salisu M. Garba; Salisu Usaini (Comput. Math. Appl., 2014)

Dynamical behavior of an epidemiological model with a demographic Allee effect. - Salisu Usaini; Alun L. Lloyd; Roumen Anguelov; Salisu M. Garba (Math. Comput. Simul., 2017)