@article{Keil2009,
  author    = {Reinhard Keil},
  title     = {Medi@Thing},
  journal   = {Commentarii informaticae didacticae : (CID)},
  series    = {ein didaktischer Ansatz zum ko-aktiven Lernen},
  number    = {1},
  pages     = {9 -- 24},
  year      = {2009},
}