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