WASET
    Chao Qi and  Fuyang Peng and  Bo Deng and  Xiaoyan Su,  The Study on Evaluation System and Method of Legacy System.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2011, vol. 59(11). 1289 - 1291
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/15486.