@article{HUB-CSES/GMPHP14,
  author = "S. Gross and B. Mokbel and B. Paassen and B. Hammer and N. Pinkwart",
  title = "Example-based feedback provision using structured solution spaces",
  year = 2014,
  journal = "International Journal of Learning Technology",
  volume = 9,
  number = 3,
  keywords = "fit",
  doi = "10.1504/IJLT.2014.065752"
}