@incollection{GroetschelLuegger2007, author = {Martin Gr{\"o}tschel and Joachim L{\"u}gger}, title = {Die Wissenschaftsgalaxis}, booktitle = {eUniversity - Update Bologna}, editor = {Reinhard Keil and Michael Kerres and Rolf Schulmeister}, pages = {335 -- 354}, url = {http://opus.kobv.de/zib/volltexte/2007/1014/}, year = {2007}, }