REFERENCES
- Gnedenko , B. V. 1963 . Theory of Probability New York : Chelsea Publishing. . (translated by B. D. Seckler)
- Hogg , R. V. and Craig , A. T. 1965 . Introduction to Mathematical Statistics, , 2nd ed. New York : Macmillan. .
- Noether , G. E. 1990 . Introduction to Statistics: The Nonparametric Way New York : Springer-Verlag. .
- Pratchett , T. 1986 . The Light Fantastic Gerrards Cross , , U.K. : Colin Smythe. .