@Book{Zimmermann1991, author="H. J. Zimmermann", title="Fuzzy Set Theory and Its Applications", year="1991", publisher="Kluwer Academic Publishers", address="Boston" } @Article{Wu 2000, author="H.-C. Wu ", title="The fuzzy Riemann integral and its numerical integration", journal="Fuzzy Sets and Systems", year="2000", pages="1--25", volume="110" } @Book{Apostol1974, author="T. M. Apostol", title="Mathematical Analysis", year="1974", publisher="Addison-Wesly", address="Reading" } @Book{Buckly 2006, author="J. J. Buckly ", title="Fuzzy probability and statistics", year="2006", publisher="Springer", address="Berlin" } @Article{Wu1998, author="H.-C. Wu", title="The improper fuzzy Riemann integral and its numerical", journal="Inform. Sci.", year="1998", pages="109--137", volume="111" } @Article{Wu2001, author="H.-C. Wu", title="Evaluate Fuzzy Riemann Integrals Using the Monte Carlo Method", journal="Journal of Mathematical Analysis and Applications", year="2001", pages="324--343", volume="264" } @Book{Bazarra1993, author="M. S. Bazarra, C. M. Shetty", title="Nonlinear programming", year="1993", publisher="John Wiley & Sons", address="New York" } @Book{Rudin 1987, author=" W. Rudin ", title="Real and Complex Analysis", year="1987", publisher="McGraw-Hill", address="New York" } @Article{Sakawa1990, author="M. Sakawa, H. Yano", title="Feasibility and pareto optimality for multiobjective linear and linear fractional programming problems with fuzzy parameters", journal="in: The interface between artificial intelligence and operations research in fuzzy environment", year="1990", pages="213--232", volume="1990" } @Article{Sims1990, author="J. R. Sims, Z. Y. Wang", title="Fuzzy measures and fuzzy integrals: an overview", journal="Internat. J. Gen. Systems", year="1990", pages="157--189", volume="17" }