Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

	1	Arkin, R.C., Riseman, E.M., and Hansen, A. 1987. AuRA: An architecture for vision-based robot navigation. In Proceedings of the DARPA Image Understanding Workshop (Los Angeles, CA, February), pp. 417-423.
	2	Kurt Konolige , Karen Myers, The saphira architecture for autonomous mobile robots, Artificial intelligence and mobile robots: case studies of successful robot systems, MIT Press, Cambridge, MA, 1998
	3	Kuipers, B. and Byun, Y.T. 1991. A robot exploration and mapping strategy based on a semantic hierarchy of spatial representations. Robotics and Autonomous Systems 8, pp. 47-63.
	4	T. S. Levitt , D. T. Lawton, Qualitative navigation for mobile robots, Artificial Intelligence, v.44 n.3, p.305-360, Aug. 1990  [doi>10.1016/0004-3702(90)90027-W ]
	5	Reid Simmons , Richard Goodwin , Karen Zita Haigh , Sven Koenig , Joseph O'Sullivan, A layered architecture for office delivery robots, Proceedings of the first international conference on Autonomous agents, p.245-252, February 05-08, 1997, Marina del Rey, California, United States  [doi>10.1145/267658.267723]
	6	Nikolaj Bjorner , Anca Browne , Eddie Chang , Michael Colon , Arjun Kapur , Z Manna , Henny B. Sipma , Tomas E. Uribe, STeP: The Stanford Temporal Prover (Educational Release) User''s Manual, Stanford University, Stanford, CA, 1995
	7	Bratman, M. 1987. Intentions, Plans, and Practical Reason. Harvard University Press, Cambridge, MA.
	8	P. Cohen. and H.J. Levesque. 1991. Teamwork. Nous 25, 4, Special Issue on Cognitive Science and Artificial Intelligence, pp. 487-512.

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