@inproceedings{LettenmeierSalo2009, author = {Lettenmeier, Michael and Salo, Ville}, title = {Natural resource consumption of different waste policy options in the Helsinki metropolitan area}, booktitle = {ConAccount 2008 : urban metabolism - measuring the ecological city ; book of proceedings}, editor = {Havr{\´a}nek, Miroslav}, publisher = {Charles Univ. Environment Center}, address = {Prague}, pages = {185 -- 204}, year = {2009}, language = {en} }