1. Applications of fuzzy sets and approximate reasoning. Applications of fuzzy sets and reasoning;Schwarz,1994
2. Fuzzy sets;Zadeh;Informat Contr,1965
3. A rationale for fuzzy control;Zadeh;J Dynamic Syst Meas Contr,1972
4. Outline of a new approach to the analysis of complex systems and decision processes;Zadeh;IEEE Trans Syste Man Cybern,1973
5. Zimmerman HJ: Toward fuzzy logic, in Zadeh L, Kacprzyk J (eds): Fuzzy Logic for the Management of Uncertainty. New York, NY, John Wiley, pp 5–28