1. Ashby, W.R. (1960) Design for a brain. New York: Wiley, 2nd ed.
2. Box, G.E.P. and Draper, N.R. (1969) Evolutionary operation: A statistical method for process improvement. New York: Wiley.
3. Box, M.J. (1965) A new method of constrained optimization and a comparison with other methods. Computer Journal, 8, 42–52.
4. Bremermann, H.J. (1968) Numerical optimization procedures derived from biological evolution processes. In: Cybernetic problems in bionics. (H.L. Oestreicher and D.R. Moore, eds.), New York: Gordon and Breach.
5. Brooks, S.H. (1958) A discussion of random methods for seeking maxima. Oper. Res., 6, 244–251.