@inproceedings{KR-2006-GhilardiLW,
	author        = "Silvio Ghilardi and Carsten Lutz and Frank Wolter",
	booktitle     = "{Proceedings of the 10th International Conference on Principles of Knowledge Representation and Reasoning}",
	ee            = "http://www.aaai.org/Library/KR/2006/kr06-021.php",
	isbn          = "978-1-57735-271-6",
	pages         = "187--197",
	publisher     = "{AAAI Press}",
	title         = "{Did I Damage My Ontology? A Case for Conservative Extensions in Description Logics}",
	year          = 2006,
}