@article{CRMATH_2005__341_2_129_0,
     author = {Nadarajah, Saralees},
     title = {Sums, differences, products, and ratios of hypergeometric beta variables},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {129--132},
     publisher = {Elsevier},
     volume = {341},
     number = {2},
     year = {2005},
     doi = {10.1016/j.crma.2005.06.013},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2005.06.013/}
}