1. Aitchison, J. & Silvey, S. D. Maximum likelihood estimation procedures and associated tests of significance.Journal of the Royal Statistical Society, Series B, 1960,22, 154–171.
2. Anderson, T. W.An introduction to multivariate statistical analysis. New York: Wiley, 1958.
3. Bargmann, R. A study of independence and dependence in multivariate normal analysis. University of North Carolina, Institute of Statistics Mimeo Series No. 186, 1957.
4. Bechtoldt, H. P. An empirical study of the factor analysis stability hypothesis.Psychometrika, 1961,26, 405–432.
5. Bellman, R.Introduction to matrix analysis. New York: McGraw-Hill, 1960.