1. Parker, G. A. & Maynard Smith, J. Optimality theory in evolutionary biology. Nature 348, 27–33 (1990).
2. Charnov, E. L. The Theory of Sex Allocation (Princeton Univ. Press, NJ, 1982).
3. Seger, J. & Stubblefield, J. W. in Adaptation 93–123 (Academic, New York, 1996)
4. Bulmer, M. G. Theoretical Evolutionary Ecology (Sinauer, Sunderland, MA, 1994.)
5. Godfray, H. C. J. Parasitoids (Princeton Univ. Press, NJ, 1994).