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{\bf Yaming Yu}
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{\bf Evaluation of a Multiple Integral of Tefera via Properties of the Exponential Distribution}
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An interesting integral originally obtained by Tefera (``A multiple
integral evaluation inspired by the multi-WZ method,''
Electron. J. Combin., 1999, \#N2) via the WZ method is proved using
calculus and basic probability.  General recursions for a class of
such integrals are derived and associated combinatorial identities are
mentioned.



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