@inproceedings{DLT-1999-KarhumakiM,
	author        = "Juhani Karhumäki and Sabrina Mantaci",
	booktitle     = "{Proceedings of the Fourth International Conference on Developments in Language Theory, Foundations, Applications, and Perspectives}",
	isbn          = "981-02-4380-4",
	pages         = "164--177",
	publisher     = "{World Scientific}",
	title         = "{Defect theorems for trees}",
	year          = 1999,
}