@misc{indiciaeacee13f05597,
  title = {Variations in intensity, interstimulus interval, and interval between preconditioning CS exposures and conditioning with rats.},
  author = {C R Crowell and D C Anderson},
  year = {1972},
  doi = {10.1037/h0032550},
  url = {https://pubmed.ncbi.nlm.nih.gov/5025997/},
  note = {Source identifier: 5025997}
}