@misc{indiciae31c1a8d030cc,
  title = {A practical approach to an absentee problem.},
  author = {H O Harris},
  doi = {10.1080/00185868.1981.9948152},
  url = {https://pubmed.ncbi.nlm.nih.gov/10250653/},
  note = {Source identifier: 10250653}
}