ArticleIssue Date1999CitationIEEE International Conference on Intelligent Robots and Systems, v.1, pp 83 - 87PublisherIEEE, Piscataway, NJ, United States
ArticleIssue Date1999CitationProceedings of the IEEE International Conference on Systems, Man and Cybernetics, v.4, pp IV - 911 - IV-915PublisherIEEE, United States