1. Minsky, Marvin, and Seymour Papert: Progress Report on Artificial Intelligence, M.I.T. Artificial Intelligence Laboratory Memo 252, 1972.
2. “Human Problem Solving,”;Newell,1972
3. Identification of Conceptualizations Underlying Natural Language;Schank,1973
4. The Structure of Belief Systems;Abelson,1973
5. Norman, Donald: Memory, Knowledge and the Answering of Questions, in R. L. Solso (Ed.), “Contemporary Issues in Cognitive Psychology: The Loyola Symposium,” V. H. Winston & Sons, Washington, D.C., 1973.