@inproceedings{TOOLS-ASIA-1999-BuehrerL,
	author        = "Daniel J. Buehrer and Chee-Hwa Lee",
	booktitle     = "{Proceedings of the 31st International Conference on Technology of Object-Oriented Languages and Systems}",
	doi           = "10.1109/TOOLS.1999.796462",
	isbn          = "0-7695-0393-4",
	pages         = "2--13",
	publisher     = "{IEEE Computer Society}",
	title         = "{Class Algebra for Ontology Reasoning}",
	year          = 1999,
}