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2. The PSEIKI Report – Version 3;Andress,1989
3. J. A. Barnett, “Computational Methods for a Mathematical Theory of Evidence,” Proceedings IJCAI, 868-875, 1981.
4. IHSE: Interactive Hierarchical Scene Editor;Blask,1989
5. A. C. Kak, K. M. Andress and C. Lopez-Abadia, “Mobile Robot Self-Location with the PSEIKI System,” AAAI Spring Symposium Series Workshop on Robot Navigation, 1989, Stanford, CA.