Blarer A, Doebeli M Heuristic optimization of the general life history
problem:
A novel approach EVOL ECOL 10 (1): 81-96 JAN 1996
Doebeli, M. Reductive group actions on affine quadrics with
1-dimensional
quotient: linearization when a linear model exists. TRANSFORMATION
GROUPS 1: 187-214, 1996