@techreport{sandrine2013circular, title = {Circular economy, industrial ecology - Elements of reflection at the Ile-de-France scale} author = {Sandrine Gueymard, Cristina Lopez}, url = {http://www.iau-idf.fr/fileadmin/NewEtudes/Etude_1036/Economie_circulaire_Ecologie_industrielle_IdF.pdf}, year = {2013} }