1. Public Investment, the Rate of Return, and Optimal Fiscal Policy;Arrow,1970
2. Optimal Control;Athans,1966
3. On the heterogeneity of reaction–diffusion generated patterns;Berding;Bulletin of Mathematical Biology,1987
4. Brito, P., 2004. The dynamics of growth and distribution in a spatially heterogeneous world. Working paper, UECE, ISEG, Technical University of Lisbon.
5. Differential Equations, Stability and Chaos in Dynamic Economics;Brock,1989