Key points are not available for this paper at this time.
Continuous Univariate Distributions, vol. 1, 2nd edn. By N. L. Johnson, S. Kotz and N. Balakrishnan. ISBN 0 471 58485 9. Wiley‐Interscience, New York, 1994. xx + 756 pp. £66.
Coleman et al. (Mon,) studied this question.