@inproceedings{ICALP-2001-ComonCM,
	author        = "Hubert Comon and Véronique Cortier and John Mitchell",
	booktitle     = "{Proceedings of the 28th International Colloquium on Automata, Languages and Programming}",
	doi           = "10.1007/3-540-48224-5_56",
	isbn          = "3-540-42287-0",
	pages         = "682--693",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Tree Automata with One Memory, Set Constraints, and Ping-Pong Protocols}",
	volume        = 2076,
	year          = 2001,
}