The waste flow diagram: identifying leakages from municipal waste management systems : compendium of case studies / implemented by giz, Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH ; authors Andrew Whiteman (RWA-Wasteaware), Josh Cottom (University of Leeds), Andreea Baias-Oros (RWA), Steffen Blume (GIZ), Mira Nagy (GIZ), Costas Velis (University of Leeds), David Newby (David Newby Associates), Christian Zurbrügg (Eawag), Andrei Pintea (RWA), Dorian Tosi-Robinson (Eawag), Maya Zaatar (RWA-Wasteaware), Nicole Weber (RWA-Wasteaware) ; editors Steffen Blume, Mira Nagy (GIZ)