Stichting Mathematisch Centrum
Stichting Mathematisch Centrum. Toegepaste Wiskunde

Diekmann, O., & Montijn, R. (1981). Prelude to hopf bifurcation in an epidemic model: analysis of a characteristic equation associated with a nonlinear volterra integral equation : (preprint). Stichting Mathematisch Centrum. Toegepaste Wiskunde. Stichting Mathematisch Centrum.