Zimmermann, H. -. (1985). Fuzzy set theory and its applications. Kluwer-Nijhoff Pub. ; Distributors for North America, Kluwer Academic Publishers.
Chicago-viite (17. p.)Zimmermann, H. -J. Fuzzy Set Theory and Its Applications. Boston : Hingham, Mass.: Kluwer-Nijhoff Pub. ; Distributors for North America, Kluwer Academic Publishers, 1985.
MLA-viite (8. p.)Zimmermann, H. -J. Fuzzy Set Theory and Its Applications. Kluwer-Nijhoff Pub. ; Distributors for North America, Kluwer Academic Publishers, 1985.
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