@inproceedings{KR-1998-Muller,
	author        = "Philippe Muller",
	booktitle     = "{Proceedings of the Sixth International Conference on Principles of Knowledge Representation and Reasoning}",
	pages         = "131--143",
	publisher     = "{Morgan Kaufmann}",
	title         = "{A Qualitative Theory of Motion Based on Spatio-Temporal Primitives}",
	year          = 1998,
}