Diallo, Mody, and Tzvetan Ignatov. “Representation of the Reciprocal Moments of Linear Combinations of Independent Exponential Variates”. Ann. Sofia Univ. Fac. Math. and Inf. 87 (December 12, 1995): 241–248. Accessed November 21, 2024. https://ftl5.uni-sofia.bg/index.php/fmi/article/view/417.