@inproceedings{LICS-2010-ColcombetL,
	author        = "Thomas Colcombet and Christof Löding",
	booktitle     = "{Proceedings of the 25th Annual IEEE Symposium on Logic in Computer Science}",
	doi           = "10.1109/LICS.2010.36",
	isbn          = "978-0-7695-4114-3",
	pages         = "70--79",
	publisher     = "{IEEE Computer Society}",
	title         = "{Regular Cost Functions over Finite Trees}",
	year          = 2010,
}