@inproceedings{SIGMOD-2012-HellingsFH,
	author        = "Jelle Hellings and George H. L. Fletcher and Herman J. Haverkort",
	booktitle     = "{Proceedings of the 30th ACM SIGMOD International Conference on Management of Data}",
	doi           = "10.1145/2213836.2213899",
	isbn          = "978-1-4503-1247-9",
	pages         = "553--564",
	publisher     = "{ACM}",
	title         = "{Efficient external-memory bisimulation on DAGs}",
	year          = 2012,
}