@misc{indiciae9739a1ad40c6,
  title = {Free-operant avoidance conditioning in human subjects.},
  author = {R ADER and R TATUM},
  year = {1961},
  doi = {10.1901/jeab.1961.4-275},
  url = {https://pubmed.ncbi.nlm.nih.gov/13681476/},
  note = {Source identifier: 13681476}
}