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\bibitem{Milis_etal2018} {\textquotedblleft}\textit{The impact of policy on microgrid economics : a review}{\textquotedblright}. Milis K, Peremans H, Van Passel S, Renewable \& Sustainable Energy Reviews \textbf{81}, 3111 (2018).   http://doi.org/10.1016/J.RSER.2017.08.091

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