@misc{indiciae9c6673e60b64,
  title = {Delayed reinforcement versus reinforcement after a fixed interval.},
  author = {A J Neuringer},
  year = {1969},
  doi = {10.1901/jeab.1969.12-375},
  url = {https://pubmed.ncbi.nlm.nih.gov/16811360/},
  note = {Source identifier: 16811360}
}