WASET
    Yunbin Yang and  Liangli He and  Fengjun Wang,  Research on Maintenance Design Method based Virtual Maintenance.   journal   = {International Journal of Industrial and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2012, vol. 68(8). 1583 - 1586
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/8358.