Engy A. Mohamed and  Yasser G. Hegazy,  A Novel Probablistic Strategy for Modeling Photovoltaic Based Distributed Generators.   journal   = {International Journal of Energy and Power Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2015, vol. 104(8). 904 - 907
    [viewed 27 May 2022]. Available from: https://publications.waset.org/pdf/10002358.