References
- A. Baines, Department of Statistics, University of Leeds,Leeds LS2 9JT,UK
- Box , G. E. P. and Wilson , K. B. 1951 . On the experimental attainment of optimum conditions . Journal of the Royal Statistical Society, Series B , 13 : 1 – 45 .
- Box , G. E. P. and Draper , N. R. 1987 . Empirical Model-building and Response Surfaces , New York : Wiley .