@inproceedings{LICS-2002-BenediktL,
	author        = "Michael Benedikt and Leonid Libkin",
	booktitle     = "{Proceedings of the 17th IEEE Symposium on Logic in Computer Science}",
	doi           = "10.1109/LICS.2002.1029829",
	isbn          = "0-7695-1483-9",
	pages         = "203--None",
	publisher     = "{IEEE Computer Society}",
	title         = "{Tree Extension Algebras: Logics, Automata, and Query Languages}",
	year          = 2002,
}