@misc{indiciaebaf178dfa4c5,
  title = {Overjustification effects in token economies.},
  author = {E B Fisher},
  year = {1979},
  doi = {10.1901/jaba.1979.12-407},
  url = {https://pubmed.ncbi.nlm.nih.gov/511808/},
  note = {Source identifier: 511808}
}