References
- G.P. Kotz S. Ord J.K. Statistical distributions in scientific work Reidel Publishing Co Dordrecht-Holland 1975 3 NATO Advanced Study Institutes Series, Series C: Mathematical and Physical Sciences, D. Boston
- Gupta , R.G. 1974 . A characteristic property of the exponential distribution . Sankkyā Ser. B , 10 : 365 – 366 .