References
- Albert , A. 1972 . Regression and the Moore-Penrose Pseudoinverse , New York : Academic Press, Inc. .
- Goldman , A. and Zelen , M. 1964 . “Weak Generalized Inverses and Minimum Variance Linear Unbiased Estimation” . Journal of Research of the National Bureau of Standards , 68B : 151 – 72 . Oct–Dec.
- Graybill , F. 1961 . An Introduction to Linear Statistical Models , Vol. 1 , New York : McGraw-Hill Book Co. .
- Graybill , F. 1969 . Introduction to Matrices with Applications in Statistics , Belmont , Calif. : Wadsworth Publishing Co., Inc. .
- Zyskind , G. 1967 . “On Canonical Forms, Non-Negative Covariance Matrices and Best and Simple Least Squares Linear Estimators in the Linear Model” . Annals of Mathematical Statistics , 38 March : 1092 – 109 .
- Zyskind , G. 1969 . “Parametric Augmentations and Error Structures under Which Certain Simple Least Squares and Analysis of Variance Procedures Are Also Best” . Journal of the American Statistical Association , 64 December : 1353 – 68 .
- Zyskind , G. and Martin , F. 1969 . “On Best Linear Estimation and a General Gauss-Markov Theorem in Linear Models with Arbitrary Non-Negative Covariance Structure” . Society of Industrial and Applied Mathematics Journal of Applied Mathematics , 17 November : 1190 – 202 .