@article{HUB-CSES/GMHP15,
  author = "S. Gross and B. Mokbel and B. Hammer and N. Pinkwart",
  title = "Learning Feedback in Intelligent Tutoring Systems",
  year = 2015,
  journal = "KI - Künstliche Intelligenz",
  publisher = "Springer Berlin Heidelberg",
  keywords = "fit, intelligent tutoring systems, example-based feedback, machine learning, prototype-based clustering",
  doi = "10.1007/s13218-015-0367-y"
}