1. Lawson, C., andHanson, R.,Solving Least Squares Problems, Prentice-Hall, Englewood Cliffs, New Jersey, 1974.
2. Courant, R., andHilbert, D.,Methods of Mathematical Physics, Interscience, New York, New York, 1953.
3. Theil, H.,Principles of Econometrics, Wiley, New York, New York, 1971.
4. Nashed, M., Editor,Generalized Inverses and Applications, Academic Press, New York, New York, 1979.
5. Decell, H.,An Application of the Cayley-Hamilton Theorem to Generalized Matrix Inversion, SIAM Review, Vol. 7, pp. 526?528, 1965.