edited by James Allen, Richard Fikes, Erik Sandewall

Morgan Kaufmann Publishers c1991 The Morgan Kaufmann series in representation and reasoning

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edited by Earl D. Sacerdoti ; with contributions by Richard E. Fikes ... [et al.]

National Technical Information Service, U.S. Dept. of Commerce [1977]

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by Richard Earl Fikes

Clearinghouse for Federal Scientific & Technical Information 1968

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