@misc{indiciaefd430b8d3793,
  title = {Stimulus-intensity dynamism and secondary reinforcement.},
  author = {R L HENDERSON},
  year = {1957},
  doi = {10.1037/h0044780},
  url = {https://pubmed.ncbi.nlm.nih.gov/13475513/},
  note = {Source identifier: 13475513}
}