Theoretical analysis of crisp-type fuzzy logic controllers using various t-norm sum-gravity inference methods. - Cheng-Liang Chen; Sheng-Nan Wang; Chung-Tyan Hsieh; Feng-Yuan Chang (IEEE Trans. Fuzzy Syst., 1998)

Theoretical analysis of a fuzzy-logic controller with unequally spaced triangular membership functions. - Cheng-Liang Chen; Sheng-Nan Wang; Chung-Tyan Hsieh; Feng-Yuan Chang (Fuzzy Sets Syst., 1999)

Vague controller: a generalization of fuzzy logic controller. - Cheng-Liang Chen; Chung-Tyan Hsieh (Int. J. Syst. Sci., 1999)