@incollection{OSJB-05,
  author =	 {Andreas Bauer and Markus Pizka},
  editor =	 {Bernd Lutterbeck and Robert Gehring},
  title =	 {{Der Beitrag freier Software zur
                  Software-Evolution}},
  pages =	 {87--104},
  booktitle =	 {{Open Source Jahrbuch 2005}},
  publisher =	 {Lehmanns Media},
  address =	 {Berlin},
  year =	 2005,
  isbn =         {3-86541-059}
}