@misc{indiciaed07f0af02234,
  title = {A proposed system for scheduling nurses.},
  author = {E D Hubbard and N H Clay and L B Coombs and D Whisenant},
  year = {1975},
  url = {https://pubmed.ncbi.nlm.nih.gov/10289171/},
  note = {Source identifier: 10289171}
}