References
- Christensen , R. 1990 . “Comment on Puntanen and Styan (1989)” . The American Statistician , 44 : 191 – 192 .
- Harville , D. A. 1981 . “Unbiased and Minimum-Variance Unbiased Estimation of Estimable Functions for Fixed Linear Models with Arbitrary Covariance Structure” . Annals of Statistics , 9 : 633 – 637 .
- Harville , D. A. 1990 . “Comment on Puntanen and Styan (1989)” . The American Statistician , 44 : 192
- Puntanen , S. and Styan , G. P. H. 1989 . “The Equality of the Ordinary Least Squares Estimator and the Best Linear Unbiased Estimator” . The American Statistician , 43 : 153 – 161 .
- Puntanen , S. and Styan , G. P. H. 1990 . “Reply to Christensen (1990) and Harville (1990)” . The American Statistician , 44 : 192
- Searle , S. R. 1982 . Matrix Algebra Useful for Statistics , New York : Wiley .