1. Karhunen-Loève expansion and factor analysis;Watanabe,1965
2. Algebraic Eigenvalue Problem;Wilkinson,1965
3. An Introduction to Multivariate Statistical Analysis;Anderson,1958
4. On the sampling theory of roots of determinantal equations;Girshick;Ann. Math. Statist.,1939
5. The computation of eigenvalues and eigenvectors of a matrix;White;J. Soc. Indust. Appl. Math.,1958