@unpublished{rechberger08[TUW-149919], author = {Rechberger, Helmut}, title = {{P}lastics {\&} {M}aterial {F}low {A}nalysis}, year = {2008}, note = {eingeladen; {V}ortrag: {E}{P}{R}{O} {G}eneral {M}eeting ''{W}ho takes care of used plastics?'', {W}ien; 2008-06-12} }