@misc{indiciae3f3633ad2923,
  title = {Tail-pinch stimulation: sufficient motivation for learning.},
  author = {G F Koob and P J Fray and S D Iversen},
  year = {1976},
  doi = {10.1126/science.982032},
  url = {https://pubmed.ncbi.nlm.nih.gov/982032/},
  note = {Source identifier: 982032}
}