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\bibitem{Creemers_etal2019} {\textquotedblleft}\textit{Relationship between farmers{\textquoteright} perception of sustainability and future farming strategies : a commodity-level comparison}{\textquotedblright}. Creemers S, Van Passel S, Vigani M, Vlahos G, AIMS Agriculture and Food \textbf{4}, 613 (2019).   http://doi.org/10.3934/AGRFOOD.2019.3.613

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