Representation and meaning : experiments with information processing systems The heuristic compiler by H. A. Simon. Some semantic methods for language processing by L. Siklóssy and H. A. Simon. Some studies in game playing with a digital computer by T. G. Williams. Computer program organization induced from problem examples by D. S. Williams. Syntax directed interpretation of natural language by L. S. Coles. Natural language learning by computer by L. Siklóssy