@misc{indiciaeeff95e9eec48,
  title = {An effective tool for feedback on a problem-based learning (PBL) course.},
  author = {Isaac D Gukas and Samuel J Leinster},
  year = {2005},
  doi = {10.1111/j.1365-2929.2005.02279.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/16262844/},
  note = {Source identifier: 16262844}
}