@inproceedings{WahlNiederwieserVollnhoferetal.,
  author    = {Wahl, Harald and Niederwieser, Martin and Vollnhofer, Sonja and Sohal, Shveta and Schwarz, Sebastian and Mense, Alexander},
  title     = {Tools for Annotating Documents in E-Learning: An Evaluation},
  series = {Proceedings of the World Conference on E-Learning in Corporate, Government, Healthcare, and Higher Education},
  booktitle = {Proceedings of the World Conference on E-Learning in Corporate, Government, Healthcare, and Higher Education},
  pages     = {21 -- 24},
  subject      = {eLearning},
  language  = {en}
}