Azadeh Maroufmashat and  Sourena Sattari Khavas and  Halle Bakhteeyar,  Design and Operation of a Multicarrier Energy System Based On Multi Objective Optimization Approach.   journal   = {International Journal of Energy and Power Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2014, vol. 93(9). 644 - 649
    [viewed 15 November 2019]. Available from: https://publications.waset.org/pdf/9999338.