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Xavier Ghellynck, Universiteit Gent

Xavier Ghellynck, Universiteit Gent

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1. Inleiding<br />

Economie:<br />

kosten en baten<br />

Duurzaamheid/sustainability<br />

Ecologie:<br />

roofbouw natuurlijke<br />

hulpbronnen<br />

vermijden<br />

Ethiek:<br />

sociale aspecten<br />

pag. 3

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