@techreport{ChenKoutschan15,
 author = {Shaoshi Chen and Christoph Koutschan},
 title = {Proof of the {W}ilf--{Z}eilberger conjecture for mixed hypergeometric terms},
 institution = {RICAM Reports Series},
 year = {2015},
 number = {2015-15},
 note = {Submitted for publication (preprint on arXiv:1507.04840)},
}