Barr, A., & Davidson, J. (1981). Knowledge representation. The handbook of artificial intelligence: Vol. 1 (pp. 141-222). Los Altos, CA: William Kaufman.
2.
Brent, Edward E. (1986). Knowledge-based systems: A qualitative formalism . Qualitative Sociology, 9(3).
Feigenbaum, Edward A. (1985, November). AI: An overview. Paper given at Artificial Intelligence Satellite Symposium, Texas Instruments , Austin, TX.
5.
Minsky, M. (1975). A framework for representing knowledge. In P. Winston (Ed.), The psychology of computer vision (pp. 211-277). New York: McGraw-Hill.
6.
Negoita, Constantin. (1984). Expert systems and fuzzy systems. Reading, MA: Addison-Wesley.
7.
Shortliffe, E. (1976). Computer-based medical consultations: MYCIN. New York: North-Holland.
8.
Waterman, D., & Hayes-Roth, F. (1978). Pattern-directed inference systems. New York: Academic Press .