@unpublished{rechberger19[TUW-278717], author = {Rechberger, Helmut}, title = {{S}cientic approaches to environmental impact assessment}, year = {2019}, note = {{V}ortrag: {C}irculare economy and resource efficienncy - {W}hat materials can bring to the table (and customers can pick up), {V}ienna; 2019-03-05} }