1. Box, G. E. P., & Andersen, S. L. Permutation theory in the derivation of robust criteria and the study of departures from assumption. Journal of the Royal Statistical Society, Series B, 1955, 17, 1–26.
2. Brown, M. B., & Forsythe, A. B. Robust tests for the equality of variances. Journal of the American Statistical Association, 1974, 69, 364–367.
3. Church, J. D., & Wike, E. L. Homogeneity of variance tests with asymmetric distributions. (Technical Report No. 3). University of Kansas Computation Center. 1975. (Available from the first author at the Mathematics Department. The University of Kansas. Uawrence. Kansas 66045).
4. Glass, G. V., Peckham, P. D., & Sanders, J. R. Consequences of failure to meet assumptions underlying the fixed-effects analvsis of variance and covariance. Review of Educational Research. 1972, 42, 237–288.
5. Layard, M. W. J. Robust large-sample tests for homogeneity of variances. Journal of the American Statistical Association. 1973. 68. 195–198.