@misc{indiciaedcc6eddfcac7,
  title = {Concurrent generalization gradients for food-controlled and shock-controlled behavior.},
  author = {E HEARST},
  year = {1962},
  doi = {10.1901/jeab.1962.5-19},
  url = {https://pubmed.ncbi.nlm.nih.gov/13905772/},
  note = {Source identifier: 13905772}
}