@unpublished{rechberger15[TUW-238670], author = {Rechberger, Helmut}, title = {{N}ew {R}esources from {U}rban {M}ines}, year = {2015}, note = {eingeladen; {V}ortrag: {E}{U}{M}{I}{C}{O}{N} ''{W}e design the future'', {L}inz; 2015-05-05 -- 2015-05-06} }