1. Advanced PID Control;Åström,2006
2. Feedback Systems: An Introduction for Scientists and Engineers;Åström,2012
3. Reglerteknik: grundläggande teori;Glad,2006
4. Interactive learning modules for PID control [lecture notes];Guzman,2008
5. IEC 61131–3: Programmable controllers – part 3: Programming languages. Technical report, International Electrotechnical Commission.