Hethcote, Herbert W.; van den Driessche, P. An SIS epidemic model with variable population size and a delay. (English) Zbl 0836.92022 J. Math. Biol. 34, No. 2, 177-194 (1995). MSC: 92D30 45M10 45M05 PDFBibTeX XMLCite \textit{H. W. Hethcote} and \textit{P. van den Driessche}, J. Math. Biol. 34, No. 2, 177--194 (1995; Zbl 0836.92022) Full Text: DOI
Mena-Lorca, Jaime; Hethcote, Herbert W. Dynamic models of infectious diseases as regulators of population sizes. (English) Zbl 0748.92012 J. Math. Biol. 30, No. 7, 693-716 (1992). MSC: 92D30 34C23 34D99 PDFBibTeX XMLCite \textit{J. Mena-Lorca} and \textit{H. W. Hethcote}, J. Math. Biol. 30, No. 7, 693--716 (1992; Zbl 0748.92012)
Hethcote, Herbert W.; van Ark, James W. Epidemiological models for heterogeneous populations: Proportionate mixing, parameter estimation, and immunization programs. (English) Zbl 0619.92006 Math. Biosci. 84, 85-118 (1987). Reviewer: T.Postelnicu MSC: 92D25 PDFBibTeX XMLCite \textit{H. W. Hethcote} and \textit{J. W. van Ark}, Math. Biosci. 84, 85--118 (1987; Zbl 0619.92006) Full Text: DOI
Hethcote, Herbert W.; Thieme, Horst R. Stability of the endemic equilibrium in epidemic models with subpopulations. (English) Zbl 0582.92024 Math. Biosci. 75, 205-227 (1985). Reviewer: G.Gripenberg MSC: 92D25 45M10 PDFBibTeX XMLCite \textit{H. W. Hethcote} and \textit{H. R. Thieme}, Math. Biosci. 75, 205--227 (1985; Zbl 0582.92024) Full Text: DOI
Hethcote, Herbert W.; Tudor, David W. Integral equation models for endemic infectious diseases. (English) Zbl 0433.92026 J. Math. Biol. 9, 37-47 (1980). MSC: 92D25 45E10 PDFBibTeX XMLCite \textit{H. W. Hethcote} and \textit{D. W. Tudor}, J. Math. Biol. 9, 37--47 (1980; Zbl 0433.92026) Full Text: DOI