@misc{indiciae49d620a0008c,
  title = {Problem effectiveness in a course using problem-based learning.},
  author = {D H Dolmans and W H Gijselaers and H G Schmidt and S B van der Meer},
  year = {1993},
  doi = {10.1097/00001888-199303000-00013},
  url = {https://pubmed.ncbi.nlm.nih.gov/8447916/},
  note = {Source identifier: 8447916}
}