1. H. Hotelling and M. Pabst, Ann. Math. Stat. 7, 29 (1936)
2. R. J. Baglan, C. D. Bowman and B. L. Berman, Phys. Rev. 3C, 2475 (1971)
3. E. G. Olds, Ann. Math. Stat. 9, 133 (1938)
4. Statistical Properties of Nuclei, ed. by J. B. Garg ( Plenum Press, New York - London, 1972 )
5. R.E. Chrien, ref. [4] p. 233