Arjun K. Gupta, Saralees Nadarajah. Sums, products, and ratios for Freund s bivariate exponential distribution. Applied Mathematics and Computation, 173(2):1334-1349, 2006. [doi]
@article{GuptaN06a,
title = {Sums, products, and ratios for Freund s bivariate exponential distribution},
author = {Arjun K. Gupta and Saralees Nadarajah},
year = {2006},
doi = {10.1016/j.amc.2005.05.003},
url = {http://dx.doi.org/10.1016/j.amc.2005.05.003},
researchr = {https://researchr.org/publication/GuptaN06a},
cites = {0},
citedby = {0},
journal = {Applied Mathematics and Computation},
volume = {173},
number = {2},
pages = {1334-1349},
}