1. The structure of belief systems;Abelson,1973
2. Representation and modeling in problems of program formation;Amarel;Mach. Intell.,1971
3. The Logician's Folly;Anderson,1972
4. The computer modeling of behavior;Apter,1970
5. Balzer, R. (1973). A global view of automatic programming. Proc. Int. Joint Conf. Artif. Intell., 3rd 1973 p. 494.