@article{EkhadKoutschanZeilberger21,
author = {Shalosh B.~Ekhad and Christoph Koutschan and Doron Zeilberger},
title = {There are {EXACTLY} 1493804444499093354916284290188948031229880469556 ways to derange a standard deck of cards (ignoring suits) [and many other such useful facts]},
journal = {Enumerative Combinatorics and Applications},
isbn_issn = {ISSN 2710-2335},
year = {2021},
volume = {1},
number = {3},
pages = {{\#}S2R17},
url = {https://sites.math.rutgers.edu/~zeilberg/mamarim/mamarimhtml/multider.html},
}