 Analysis of Variance
 Simon, S.D. and Lesage, J.P. (1989) Assessing the Accuracy of ANOVA
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 Linear Regression
 Longley, J.W. (1967) An Appraisal of Least Squares Programs for the
Electronic Computer from the Viewpoint of the User,
Journal of the American Statistical Association, 62, pp 819841.
 Wampler, R.H. (1970) A Report of the
Accuracy of Some WidelyUsed Least Squares Computer Programs,
Journal of the American Statistical Association, 65, pp 549565.
