WASET
    Rami A. Maher and  Ibraheem K. Ibraheem,  On The Design of Robust Governors of Steam Power Systems Using Polynomial and State-Space Based H∞ Techniques: A Comparative Study.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2014, vol. 92(8). 1249 - 1254
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/9998962.