1. Berndtsson, B. and Jagers, P. (1979) Exponential growth of a branching process usually implies stable age distribution. J. Appl. Prob. 16 651–656.
2. Diekmann, O., Gyllenberg, M., and Thieme, H.R. (1993a) Perturbing semigroups by solving Stieltjes renewal equations. Differential and Integral Equations
6 155–181.
3. Diekmann, O., Gyllenberg, M., Metz, J.A.J., and Thieme, H.R. (1993b) The “cumulative” formulation of (physiologically) structured population models, In “Evolution Equations, Control Theory and Biomathematics”, (Ph. Clement and G. Lumer, Eds.), pp. 145–154, Marcel Dekker, New York.
4. Diekmann, O., Gyllenberg, M., and Thieme, H.R. (1995) Perturbing evolutionary systems by step responses and cumulative outputs. Differential and Integral Equations
8 1205–1244.
5. Diekmann, O., Gyllenberg, M., Metz, J.A.J., and Thieme, H.R. (1998) On the formulation and analysis of general deterministic structured population models. I. Linear theory. Journal of Mathematical Biology
36 349–388.