@inproceedings{IshikawaKoutschan12,
 author = {Masao Ishikawa and Christoph Koutschan},
 title = {Zeilberger's holonomic ansatz for {P}faffians},
 booktitle = {Proceedings of the International Symposium on Symbolic and Algebraic Computation (ISSAC)},
 pages = {227--233},
 year = {2012},
 publisher = {ACM},
 address = {New York, USA},
 isbn_issn = {ISBN 978-1-4503-1269},
 doi = {10.1145/2442829.2442863},
 url = {http://www.koutschan.de/data/pfaffians/},
}