1. PID Controllers: Theory, Design, and Tuning;Åström,1995
2. Theoretical consideration of retarded control;Cohen;Trans. ASME,1953
3. Designing and tuning digital controllers;Dahlin;Instruments and Control Systems,1968
4. Industrial adaptive controllers based on frequency response techniques;Hägglund;Automatica,1991
5. ‘Single-term’ control of first- and second-order processes with dead time;Higham;Control,1968