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.North American Conference on Logic Programming(1989 : Cleveland, Ohio)：Logic programming : proceedings of the North American Conference , 1989．V.1.MIT Pr.,1989.
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ed. by H. Baumgarten.International Conference on Simulation in Manufacturing (5th : 1989 : Berlin)：Simulation in manufacturing: technology for tomorrow.IFS Conference,1989.
ed. by Edward A. MacNair, Kenneth J. Musselman, Philip Heidelberger.Winter Simulation Conference (1989 : Wash., D. C.).Association for Computing Machinery,1989.
ed. by Wen Chuan Yuan...[et al.].International Conference on System Simulation and Scientific Computing (1989 : Beijing)：System simulation and scientific computing．1.Pergamon Pr.,1989.
.International Conference on Evolution of Advanced Materials (1989 : Milano)：Evolution of advanced materials : proceedings of the international conference.AIM,1989.
International Conference on Evolution of Advanced Materials (1989 : Milano)：Evolution of advanced materials : proceedings of the international conference
