«Welcome to IEEE Xplore 2.0: Use of procedural programming languages for controlling production systems». Proceedings. The Seventh IEEE Conference on Artificial Intelligence Application(en inglés). IEEE. S2CID58175293. doi:10.1109/CAIA.1991.120848.
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«Welcome to IEEE Xplore 2.0: Use of procedural programming languages for controlling production systems». Proceedings. The Seventh IEEE Conference on Artificial Intelligence Application(en inglés). IEEE. S2CID58175293. doi:10.1109/CAIA.1991.120848.