@inproceedings{KR-1992-FreitagF,
	author        = "Hartmut Freitag and Gerhard Friedrich",
	booktitle     = "{Proceedings of the Third International Conference on Principles of Knowledge Representation and Reasoning}",
	isbn          = "1-55860-262-3",
	pages         = "521--531",
	publisher     = "{Morgan Kaufmann}",
	title         = "{Focusing on Independent Diagnosis Problems}",
	year          = 1992,
}