1. Du, X., Ying, H.: Derivation and analysis of the analytical structures of the interval type-2 fuzzy PI and PD controllers. IEEE Trans. Fuzzy Syst. 8, 802–814 (2010)
2. Farinwata, S.S., Vachtsevanos, G.: Stability analysis of the fuzzy logic controller designed by the phase portrait assignment algorithm. In: Proceedings of the 2nd IEEE International conference Fuzzy Systems, San Francisco, pp. 1377–1382 (1993)
3. Langari, R.: A nonlinear formulation of a class of fuzzy linguistic control algorithms. In: Proceedings of the 1992 American Control Conference, Chicago, IL (1992)
4. Lewis, F.L., Liu, K.: Towards a paradigm for fuzzy logic control. Automatica 32, 167–181 (1996)
5. Li, H.X., Gatland, H.B.: A new methodology for designing a fuzzy logic controller. IEEE Trans. Syst. Man Cybern. 25, 505–512 (1995)