@article{ChenKoutschan18,
 author = {Shaoshi Chen and Christoph Koutschan},
 title = {Proof of the {W}ilf--{Z}eilberger conjecture for mixed hypergeometric terms},
 journal = {Journal of Symbolic Computation},
 year = {2018},
 isbn_issn = {ISSN 0747-7171},
 note = {To appear (preprint on arXiv:1507.04840)},
}