@misc{indiciae53f7daf6606a,
  title = {Human fixed-interval performance with concurrently programmed schedules: A parametric analysis.},
  author = {R Poppen},
  year = {1982},
  doi = {10.1901/jeab.1982.37-251},
  url = {https://pubmed.ncbi.nlm.nih.gov/16812268/},
  note = {Source identifier: 16812268}
}