@inproceedings{PucherMenseWahletal.2004,
  author    = {Robert Pucher and Alexander Mense and Harald Wahl and Alexander Nimmervoll and Alexander Hofmann and Barbara Hammerl and Fritz Schm{\"o}llebeck},
  title     = {Intrinsic Motivation of Students in PBL Courses},
  booktitle = {Proceedings of the International Conference PBL2004 Pleasure by Learning, Cancun (Mexico)},
  year      = {2004},
}