@inproceedings{OPUS4-2007,
  title     = {Proceedings der Pre-Conference Workshops der 12. e-Learning Fachtagung Informatik},
  series = {CEUR Workshop Proceedings},
  volume    = {1227},
  editor    = {Christoph Rensing and Stephan Trahasch},
  address   = {Freiburg},
  organization    = {German Computer Society DeLFI},
  issn      = {1613-0073},
  year      = {2014},
  language  = {de}
}