@inproceedings{ICALP-2004-SeidlSMH,
	author        = "Helmut Seidl and Thomas Schwentick and Anca Muscholl and Peter Habermehl",
	booktitle     = "{Proceedings of the 31st International Colloquium on Automata, Languages and Programming}",
	doi           = "10.1007/978-3-540-27836-8_94",
	isbn          = "3-540-22849-7",
	pages         = "1136--1149",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Counting in Trees for Free}",
	volume        = 3142,
	year          = 2004,
}