@inproceedings{KR-1989-Ishida,
	author        = "Yoshiteru Ishida",
	booktitle     = "{Proceedings of the First International Conference on Principles of Knowledge Representation and Reasoning}",
	isbn          = "1-55860-032-9",
	pages         = "170--179",
	publisher     = "{Morgan Kaufmann}",
	title         = "{A Framework for Dynamic Representation of Knowledge: A Minimum Principle in Organizing Knowledge Representation}",
	year          = 1989,
}