1. -ANDERSON, T.W. (1958).:An Introduction to Multivariate Statistical Analysis. Wiley, New York.
2. -DEEMER, W.L., OLKIN, I. (1951).:The Jacobian of Certain Matrix Transformations Useful in Multivariate Analysis. Based on lectures of P.L. Hsu at the University of North Carolina, 1947, Biometrika, 38, 345–367.
3. -KELKER, D. (1968).:Distribution Theory of Spherical Distributions and Some Characterization Theorems. Michigan State University Technical Report-RM-210 DK-1.
4. -LEHMANN, E.L. (1959).:Testing Statistical Hypotheses. Wiley, New York.
5. -LORD, R.D. (1954).:The use of the Hankel transformation in Statistics I. General theory and examples. Biometrika, 41, 44–55.