Vol 12, No 3

Fall 1991

Table of Contents

Letters

Paul R. Cohen, Robert R. Hoffman, Diane Kirrane
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10

Articles

Robert Neches, Richard E. Fikes, Tim Finin, Thomas Gruber, Ramesh Patil, Ted Senator, William R. Swartout
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36
Matthew L. Ginsberg
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57
Daniel G. Bobrow
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64
Wendy Lehnert, Beth Sundheim
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81
Michel Mitri
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95
Arie A. Covrigaru, Robert K. Lindsay
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110
Randall Davis
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95

Reports

Nicholas V. Findler, Uttam Sengupta
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22
Sanjay Bhansali
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31
Randall J. Calistri-Yeh
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34

Book Reviews

Amit Mukerjee
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122

Departments

AAAI
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17

Columns

David Blanchard
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16