@unpublished{rechberger10[TUW-188963], author = {Rechberger, Helmut}, title = {{U}rban {M}ining: {D}efinition, {P}otenzial, {A}ufgaben}, year = {2010}, note = {eingeladen; {V}ortrag: {W}orkshop ''{V}erwertung ressourcenrelevanter {S}toffe aus dem anthropogenen {L}ager'', {B}erlin; 2010-11-09} }