1. Bialkowski, W.L.: ‘Control of the pulp and paper making process’, Levine, W.S., The Control Handbook, (CRC Press, Boca Raton, FL, USA 1996), p. 1219–1242
2. Åström, K.J., and Haagglund, T.: ‘PID controllers: theory, design, and tuning’, Research Triangle Park, NC, USA 1995),2nd edn.
3. TUNING OF PID CONROLLERS: SURVEY OF SISO AND MIMO TECHNIQUES