@misc{indiciae367e63d3db1b,
  title = {Teaching tips: learning portfolios.},
  author = {Diane Billings and Karren Kowalski},
  doi = {10.3928/0022-0124-20050701-03},
  url = {https://pubmed.ncbi.nlm.nih.gov/16121491/},
  note = {Source identifier: 16121491}
}