1. Optimum settings for automatic controllers;Ziegler;Trans ASME,1942
2. Astrom KJ, Hagglund T, Hang CC, Ho WK. Automatic tuning and adaptation for PID controllers—a survey. Control Eng Pract 1993;1(4):699–714.
3. Astrom K, Hagglund T. PID controller: theory, design and tuning, 2nd ed. Research Triangle Park: Instrumentation, Systems and Automatic Society; 1995.
4. Astrom KJ, Hagglund T. Advanced PID control. Research Triangle Park, NC: ISA—The Instrumentation, Systems, and Automation Society; 2006.
5. Adaptive robust PID controller design based on a sliding mode for uncertain chaotic systems;Chang;Chaos Solitons Fractals,2005