@inbook{publication-4064, address={Dordrecht}, author={Unger, B and Pull, Kerstin and Backes-Gellner, Uschi}, booktitle={Governance and Performance in the German Public Research Sector; Disciplinary Differences}, editor={Jansen, Dorothea}, isbn={978-90-481-9139-0}, number=32, pages={93-106}, publisher={Springer}, title={The Performance of German Research Training Groups in Different Disciplinary Fields: An Empirical Assessment}, year=2009, }