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\bibitem{Chelan_etal2018} {\textquotedblleft}\textit{Economic sustainability assessment in semi-steppe rangelands}{\textquotedblright}. Chelan MM, Alijanpour A, Barani H, Motamedi J, Azadi H, Van Passel S, Science Of The Total Environment \textbf{637-638}, 112 (2018).   http://doi.org/10.1016/J.SCITOTENV.2018.04.428

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