WASET
    Boukelkoul Lahcen,  Maintenance Alternatives Related to Costs of Wind Turbines Using Finite State Markov Model.   journal   = {International Journal of Energy and Power Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2016, vol. 109(1). 69 - 72
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10003477.