M. Thonnat, S. Moisan, and M. Crubézy. Proceeding of the 1st International Conference on Vision
Systems, Las Palmas, Gran Canaria, Spain, Springer-Verlag, (January 1998)
A. Misra, A. Sowmya, and P. Compton. Pacific Knowledge Acquisition Workshop 2004, as part of Pacific Rim
International Conference on Artificial Intelligence (PRICAI) 2004, Auckland, (August 2004)