@misc{indiciae6ca10182de83,
  title = {Time limits for completing fixed ratios. III. Stimulus variables.},
  author = {A J Decasper and M D Zeiler},
  year = {1974},
  doi = {10.1901/jeab.1974.22-285},
  url = {https://pubmed.ncbi.nlm.nih.gov/16811794/},
  note = {Source identifier: 16811794}
}