In: Proceedings of the SPIE/IEEE Applications of Artificial Intelligence VII. IEEE - Applications of Artificial Intelligence, VII, March 28-30, Orlando, FL, USA, Pages 1126-1133, Vol. 7, No. 1-2, SPIE, 1989.
In: Proceedings of the MIV-89. International Workshop on Industrial Applications of Machine Intelligence and Vision (MIV-89), April 10-12, Tokyo, Japan, Pages 276-281, IEEE, 1989.