@misc{WahlPucherMenseetal.,
  author    = {Wahl, Harald and Pucher, Robert and Mense, Alexander and Schm{\"o}llebeck, Fritz and Hofmann, Alexander and Nimmervoll, Alexander and Eckkrammer, Florian and Gollner, Helmut},
  title     = {Do Competitions between Teams in Self-Directed Learning Increase the Performance of Students?},
  subject      = {Competition},
  language  = {en}
}