@misc{indiciae99b95d18fa8d,
  title = {Hypothalamic motivational systems: fixed or plastic neural circuits?},
  author = {E S Valenstein and V C Cox and J W Kakolewski},
  year = {1969},
  doi = {10.1126/science.163.3871.1084},
  url = {https://pubmed.ncbi.nlm.nih.gov/5764877/},
  note = {Source identifier: 5764877}
}