@unpublished{rechberger08[TUW-149647], author = {Rechberger, Helmut}, title = {{I}nnovation {\&} {T}echnical {T}rends}, year = {2008}, note = {eingeladen; {V}ortrag: envietech 2008 ''{E}nvironmental {T}echnology {\&} {R}enewable {E}nergy'', {W}ien; 2008-02-01} }