@misc{indiciae1b5507755fba,
  title = {Defining behavioral contrast for multiple schedules.},
  author = {F K McSweeney and W D Norman},
  year = {1979},
  doi = {10.1901/jeab.1979.32-457},
  url = {https://pubmed.ncbi.nlm.nih.gov/16812157/},
  note = {Source identifier: 16812157}
}