- Berryman, A. A., and L. V. Pienaar. 1973. Simulation of intraspecific competition and survival of Scolytus ventralis broods (Coleoptera: Scolytidae) . Environmental Entomology 2:447-459.
- Berryman, A. A., and L. V. Pienaar. 1974. Simulation: a powerful method of investigating the dynamics and management of insect populations . Environmental Entomology 3:199-207.