@incollection{DrummerHambachKienle2011,
  author    = {Jens Drummer and Sybille Hambach and Andrea Kienle},
  title     = {Forschungsherausforderung des E-Learnings},
  series = {DeLFI 2011 : die 9. E-Learning-Fachtagung Informatik der Gesellschaft f{\"u}r Informatik e.V. ; 5. - 8. September 2011, Technische Universit{\"a}t Dresden},
  publisher = {GI},
  address   = {Bonn},
  year      = {2011},
  language  = {de}
}