@inbook{13266,
  author       = {{Müller, Claudia and Trier, Matthias and Herzog, Michael A.}},
  booktitle    = {{E-Learning}},
  isbn         = {{3790815888}},
  title        = {{{Process-Oriented Production of Learning Units for Sustainable E-Learning Offerings}}},
  doi          = {{10.1007/3-7908-1655-8_27}},
  year         = {{2005}},
}