1. “Fuzzy Logic and Approximate Reasoning,”;Zadeh;ERL Memorandum M-479,1974
2. “Similarity Relations and Fuzzy Orderings,”;Zadeh;Inf. Sci,1971
3. “The Concept of a Linguistic Variable and Its Application to Approximate Reasoning,”;Zadeh;ERL Memorandum M-411,1973
4. “A Fuzzy-Algorithmic Approach to the Definition of Complex or Imprecise Concepts,”;Zadeh;ERL Memorandum M-474,1974
5. “Abstraction and Pattern Classification,”;Bellman;Jour. Math. Analysis and Appl.,1966