@misc{indiciae5fccc0db5795,
  title = {Shock intensity and duration interactions on free-operant avoidance behavior.},
  author = {J D Leander},
  year = {1973},
  doi = {10.1901/jeab.1973.19-481},
  url = {https://pubmed.ncbi.nlm.nih.gov/16811678/},
  note = {Source identifier: 16811678}
}