Harhoff, Dietmar MPI for Intellectual Property and Competition Law, Max Planck Society;
https://www.e-fi.de/fileadmin/Gutachten_2013/EFI_Report_2013.pdf (Publisher version)
https://www.e-fi.de/fileadmin/Gutachten_2013/EFI_Gutachten_2013.pdf (Publisher version)
Backes-Gellner, U., Böhringer, C., Gerybadze, A., Harhoff, D., Llerena, P., & Schnitzer, M. (2013). Report - Research, Innovation and Technological Performance in Germany. Berlin: EFI.