@misc{indiciaecf7cd0f5fb33,
  title = {Operant variability when reinforcement is delayed.},
  author = {Katie Wagner and Allen Neuringer},
  year = {2006},
  doi = {10.3758/bf03193187},
  url = {https://pubmed.ncbi.nlm.nih.gov/16933797/},
  note = {Source identifier: 16933797}
}