Aschhoff, Birgit, Thorsten Doherr, Christian Köhler, Bettina Peters, Christian Rammer, Torben Schubert and Franz Schwiebacher (2008), Innovation in Germany. Results of the German Innovation Survey 2007, Mannheim . Download
Aschhoff, Birgit, Thorsten Doherr, Christian Köhler, Bettina Peters, Christian Rammer, Torben Schubert and Franz Schwiebacher (2008), Innovation in Germany. Results of the German Innovation Survey 2007, Mannheim . Download
