Le-Ren Chang-Chien and  Yin-Juin Lin and  Chin-Chung Wu,  An Online Evaluation of Operating Reserve for System Security.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2007, vol. 4(4). 651 - 656
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/4971.