We use the Penna bit-string biological ageing model to simulate the particular feature of the oldest old of presenting a higher survival rate than the usual one. Three different strategies are proposed, all leading to the desired effect. © 1995.
Moss de Oliveira, S., de Oliveira, P. M. C., & Stauffer, D. (1995). Modeling the oldest old. Physica A: Statistical Mechanics and Its Applications, 221(4), 453–459. https://doi.org/10.1016/0378-4371(95)00279-2