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Communications and tracking expert systems study
Research Institute for Computing and Information Systems.
Also available via Internet from the NASA Technical Report Server web site. Address as of 12/20/05: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19900017688_1990017688.pdf ; current access is available via PURL.
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Information storage and retrieval systems
Technical report (University of Houston--Clear Lake. Research Institute for Computing and Information Systems)