1. Berkson, J. (1944). Application of the logistic function to bioassay. Journal of the American Statistical Association, 39, 367–365.
2. Cox, D. R. (1970). Analysis of Binary Data. Methuen, London.
3. Galambos, J. and Kotz, S. (1979). Characterizations of Probability Distributions: A Unified Approach with the Emphasis on Exponential and Related Models. Lecture Notes in Mathematics, Vol. 675, Springer-Verlag.
4. George, E. O. and Mudholkar, G. S. (1980a). On a characterization of the logistic distribution (submitted for publication).
5. George, E. O. and Mudholkar, G. S. (1980b). A characterization of the logistic by a sample median (submitted for publication).