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\bibitem{Biely_etal2018} {\textquotedblleft}\textit{The idea of weak sustainability is illegitimate}{\textquotedblright}. Biely K, Maes D, Van Passel S, Environment, development and sustainability \textbf{20}, 223 (2018).   http://doi.org/10.1007/S10668-016-9878-4

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