1. “YAPS: Yet another production system,”;ALLEN,1983
2. ÅRZÉN, K-E. (1986a): “Expert systems for process control,” in D. Sriram and R. Adey (Eds.): Proc. of First International Conference on Applications of Artificial Intelligence in Engineering Practice, Springer Verlag, Berlin, pp. 1127–1138.
3. ÅRZÉN, K-E. (1986b): “Use of expert systems in closed loop feedback control,” Proc. of American Control Conference, Seattle, WA.
4. ÅRZÉN, K-E. (1987): “Realization of expert system based feedback control,” Ph.D. thesis CODEN: LUTFD2/TFRT-1029, Department of Automatic Control, Lund Institute of Technology, Lund, Sweden.
5. ÅSTRÖM, K.J. and J.J. ANTON (1984): “Expert control,” Proc. 9′th IFAC World Congress, Budapest, Hungary.