1. Kenneth J. Arrow and Gerard Debreu, Existence of an Equilibrium for a Competitive Economy, Econometrica (1954), 22, 265–290.
2. Richard H. Day, Recursive Programming and Production Response, North-Holland Publishing Company, Amsterdam, 1963.
3. Richard H. Day, Adaptive Processes and Economic Theory, in R. H. Day and T. Groves (eds.), Adaptive Economic Models, Academic Press, New York, 1975.
4. Richard H. Day, Complex Economic Dynamics, Volume
1, An Introduction to Dynamical Systems and Market Mechanisms, MIT Press, Cambridge, 1994.
5. Richard H. Day and Alessandro Cigno, Modelling Economic Change, Elsevier North-Holland, Inc., Amsterdam 1978.