TY - JOUR TI - The ecological sustainability of regional metabolisms: Material flow analyses of the regions of Hamburg, Vienna and Leipzig PY - 2006 AU - Hammer AU - Giljum AU - Luks AU - Winkler T2 - Natur und Kultur (Nature and Culture) LK - http://www.umweltethik.at/wp/wp-content/uploads/HammerEtAlRegionaleMetabolismen.pdf ER -