Nayeripour, M. , Azad, E. , Roosta, A. , Niknam, T. (2009), 'Investigation and Congestion Management to Solvethe Over-Load Problem of Shiraz Substation in FREC', World Academy of Science, Engineering and Technology, Open Science Index 36, International Journal of Industrial and Manufacturing Engineering, 3(12), 1620 - 1625.