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\bibitem{Jeanloz_etal2016} {\textquotedblleft}\textit{Towards a more structured selection process for attributes and levels in choice experiments : a study in a Belgian protected area}{\textquotedblright}. Jeanloz S, Lizin S, Beenaerts N, Brouwer R, Van Passel S, Witters N, Ecosystem Services \textbf{18}, 45 (2016).   http://doi.org/10.1016/J.ECOSER.2016.01.006

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