Guo, Peijun; Tanaka, Hideo; Zimmermann, H.-J. Upper and lower possibility distributions of fuzzy decision variables in upper level decision problems. (English) Zbl 0938.90073 Fuzzy Sets Syst. 111, No. 1, 71-79 (2000). MSC: 90C70 90B50 PDFBibTeX XMLCite \textit{P. Guo} et al., Fuzzy Sets Syst. 111, No. 1, 71--79 (2000; Zbl 0938.90073) Full Text: DOI
Herrera, F.; Verdegay, J. L.; Zimmermann, H.-J. Boolean programming problems with fuzzy constraints. (English) Zbl 0790.90079 Fuzzy Sets Syst. 55, No. 3, 285-293 (1993). MSC: 90C70 90C09 PDFBibTeX XMLCite \textit{F. Herrera} et al., Fuzzy Sets Syst. 55, No. 3, 285--293 (1993; Zbl 0790.90079) Full Text: DOI
Lehmann, Ingo; Weber, Richard; Zimmermann, Hans-Jürgen Fuzzy set theory. (Die Theorie der unscharfen Mengen.) (German) Zbl 0825.68501 OR Spektrum 14, No. 1, 1-9 (1992). MSC: 68T50 03E72 90-02 90C70 90B50 91F20 PDFBibTeX XMLCite \textit{I. Lehmann} et al., OR Spektrum 14, No. 1, 1--9 (1992; Zbl 0825.68501) Full Text: DOI
Czogała, Ernest; Zimmermann, Hans-Jürgen Decision making in uncertain environments. (English) Zbl 0579.90060 Eur. J. Oper. Res. 23, 202-212 (1986). MSC: 90B50 03E72 PDFBibTeX XMLCite \textit{E. Czogała} and \textit{H.-J. Zimmermann}, Eur. J. Oper. Res. 23, 202--212 (1986; Zbl 0579.90060) Full Text: DOI
Zimmermann, H.-J. Applications of fuzzy set theory to mathematical programming. (English) Zbl 0578.90095 Inf. Sci. 36, 29-58 (1985). MSC: 90C99 03E72 90-02 PDFBibTeX XMLCite \textit{H. J. Zimmermann}, Inf. Sci. 36, 29--58 (1985; Zbl 0578.90095) Full Text: DOI
Zimmermann, H.-J.; Zysno, P. Quantifying vagueness in decision models. (English) Zbl 0569.90050 Eur. J. Oper. Res. 22, 148-158 (1985). MSC: 90B50 03E72 PDFBibTeX XMLCite \textit{H. J. Zimmermann} and \textit{P. Zysno}, Eur. J. Oper. Res. 22, 148--158 (1985; Zbl 0569.90050) Full Text: DOI
Czogała, Ernest; Zimmermann, Hans-Jürgen The aggregation operations for decision making in probabilistic fuzzy environment. (English) Zbl 0549.90057 Fuzzy Sets Syst. 13, 223-239 (1984). MSC: 90B50 03E72 PDFBibTeX XMLCite \textit{E. Czogała} and \textit{H.-J. Zimmermann}, Fuzzy Sets Syst. 13, 223--239 (1984; Zbl 0549.90057) Full Text: DOI
Zimmermann, H.-J. Using fuzzy sets in operational research. (English) Zbl 0535.90054 Eur. J. Oper. Res. 13, 201-216 (1983). Reviewer: S.Chanas MSC: 90B99 90C99 94D05 03E72 90-02 PDFBibTeX XMLCite \textit{H. J. Zimmermann}, Eur. J. Oper. Res. 13, 201--216 (1983; Zbl 0535.90054) Full Text: DOI
Thole, U.; Zimmermann, H.-J.; Zysno, P. On the suitability of minimum and product operators for the intersection of fuzzy sets. (English) Zbl 0408.94030 Fuzzy Sets Syst. 2, 167-180 (1979). MSC: 94D05 62P25 91B06 91A35 PDFBibTeX XMLCite \textit{U. Thole} et al., Fuzzy Sets Syst. 2, 167--180 (1979; Zbl 0408.94030) Full Text: DOI
Zimmermann, H.-J. Fuzzy programming and linear programming with several objective functions. (English) Zbl 0364.90065 Fuzzy Sets Syst. 1, 45-55 (1978). MSC: 90C05 03E70 PDFBibTeX XMLCite \textit{H. J. Zimmermann}, Fuzzy Sets Syst. 1, 45--55 (1978; Zbl 0364.90065) Full Text: DOI
Rödder, W.; Zimmermann, H. J. Analyse, Beschreibung und Optimierung von unscharf formulierten Problemen. (German) Zbl 0397.90099 Z. Oper. Res., Ser. A 21, 1-18 (1977). MSC: 90C99 03E72 PDFBibTeX XMLCite \textit{W. Rödder} and \textit{H. J. Zimmermann}, Z. Oper. Res., Ser. A 21, 1--18 (1977; Zbl 0397.90099) Full Text: DOI
Zimmermann, Hans-J. Description and optimization of fuzzy systems. (English) Zbl 0338.90055 Int. J. gen. Syst. 2, 209-215 (1976). MSC: 90C99 91B06 94-00 PDFBibTeX XMLCite \textit{H.-J. Zimmermann}, Int. J. Gen. Syst. 2, 209--215 (1976; Zbl 0338.90055) Full Text: DOI