@misc{indiciaeeb0bb4019c1c,
  title = {Off-day scheduling with hierarchical worker categories.},
  author = {H Emmons and R N Burns},
  doi = {10.1287/opre.39.3.484},
  url = {https://pubmed.ncbi.nlm.nih.gov/10112157/},
  note = {Source identifier: 10112157}
}