Kaufmann, A. (1975). Introduction to the theory of fuzzy subsets. Academic Pr.
Chicagoスタイル(17版)引用形式Kaufmann, A. Introduction to the Theory of Fuzzy Subsets. Orlando, Fal: Academic Pr, 1975.
MLA(9版)引用形式Kaufmann, A. Introduction to the Theory of Fuzzy Subsets. Academic Pr, 1975.
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