@unpublished{winter09[TUW-178664], author = {Winter, Franz and Nowak, Benedikt and Mattenberger, Harald and Rechberger, Helmut and Hermann, Lois}, title = {{R}ecovery of {N}utrients : {U}rban {M}ining}, year = {2009}, note = {{V}ortrag: {P}recious {W}ood - {U}rban {W}ood, {W}ien; 2009-10-13} }