@misc{indiciaeb18cbe6684a4,
  title = {LSD and d-amphetamine effects on fixed interval responding in the rat.},
  author = {C Ksir and S Nelson},
  year = {1977},
  doi = {10.1016/0091-3057(77)90025-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/857253/},
  note = {Source identifier: 857253}
}