1. Outline of a new approach to the analysis of complex systems and decision processes;Zadeh;IEEE Trans. Syst., Man, Cybernetics,1973
2. Fuzzy Sets and Fuzzy Logic: Theory and Applications;Klir,1995
3. Vagueness: An exercise in logical analysis;Black;Int. J. of Gen. Syst.,1937
4. Fuzzy sets;Zadeh;Inf. Control,1965
5. A generalization of Bayesian inference;Dempster;J. Roy. Statist. Soc., Ser. B,1968