WASET
     M. Bouguerra and  H. Meglouli and  I. Habi,  Optimal Preventive Maintenance of the Reserve Source in the Industrial Electric Network.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2008, vol. 23(11). 2604 - 2607
    [viewed 11 May 2024]. Available from: https://publications.waset.org/pdf/9713.