@misc{indiciae5209f04e7481,
  title = {Second-order autoshaped key pecking based on an auditory stimulus.},
  author = {J S Burt and R F Westbrook},
  year = {1980},
  doi = {10.1901/jeab.1980.34-305},
  url = {https://pubmed.ncbi.nlm.nih.gov/7452133/},
  note = {Source identifier: 7452133}
}