@inproceedings{ICALP-v2-2015-Zetzsche,
	author        = "Georg Zetzsche",
	booktitle     = "{Proceedings of the 42nd International Colloquium on Automata, Languages, and Programming, Part II}",
	doi           = "10.1007/978-3-662-47666-6_35",
	isbn          = "978-3-662-47665-9",
	pages         = "440--451",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{An Approach to Computing Downward Closures}",
	volume        = 9135,
	year          = 2015,
}