@article{CIAA-J-2000-Bruggemann-KleinW02,
	author        = "Anne Brüggemann-Klein and Derick Wood",
	doi           = "10.1142/S0129054102000959",
	journal       = "{International Journal of Foundations of Computer Science}",
	number        = 1,
	pages         = "67--81",
	publisher     = "{World Scientific}",
	title         = "{The Regularity of Two-Way Nondeterministic Tree Automata Languages}",
	volume        = 13,
	year          = 2002,
}