@misc{indiciae3c50b57500e4,
  title = {Within-session changes in responding during several simple schedules.},
  author = {F K McSweeney and J M Roll and J N Weatherly},
  year = {1994},
  doi = {10.1901/jeab.1994.62-109},
  url = {https://pubmed.ncbi.nlm.nih.gov/16812736/},
  note = {Source identifier: 16812736}
}