F. Bacchus, J. Halpern, и H. Levesque. Reasoning with Uncertainty in Robotics, том 1093 из Lecture Notes in Computer Science, стр. 218-220. Springer, (1995)
C. Boutilier, N. Friedman, и J. Halpern. AAAI '98/IAAI '98: Proceedings of the fifteenth national/tenth conference on Artificial intelligence/Innovative applications of artificial intelligence, стр. 127--134. Menlo Park, CA, USA, American Association for Artificial Intelligence, (1998)