@misc{indiciae8fa466d59384,
  title = {Time allocation and negative reinforcement.},
  author = {W M Baum},
  year = {1973},
  doi = {10.1901/jeab.1973.20-313},
  url = {https://pubmed.ncbi.nlm.nih.gov/16811709/},
  note = {Source identifier: 16811709}
}