@inproceedings{PucherSchmoellebeckHofmann,
  author    = {Pucher, Robert and Schm{\"o}llebeck, Fritz and Hofmann, Alexander},
  title     = {Teaching in Project Based Learning Environments and the Role of Intrinsic vs. Extrinsic Motivation},
  series = {Proceedings of the International conference ICBL 2007},
  booktitle = {Proceedings of the International conference ICBL 2007},
  subject      = {Project Based Learning},
  language  = {en}
}