Sara Mohtashami and  Habib Rajabi Mashhadi,  Power Generation Scheduling of Thermal Units Considering Gas Pipelines Constraints.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2009, vol. 25(1). 98 - 103
    [viewed 30 January 2020]. Available from: https://publications.waset.org/pdf/2767.