WASET
    Truong Nguyen Luan Vu and  Moonyong Lee,  Independent Design of Multi-loop PI/PID Controllers for Multi-delay Processes.   journal   = {International Journal of Electrical and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    December 2009, vol. 36(12). 1586 - 1591
    [viewed 18 April 2024]. Available from: https://publications.waset.org/pdf/13433.