@misc{indiciaea84e33138a4d,
  title = {An invariant relation between changing over and reinforcement.},
  author = {L R Dreyfus and L G Dorman and J G Fetterman and D A Stubbs},
  year = {1982},
  doi = {10.1901/jeab.1982.38-327},
  url = {https://pubmed.ncbi.nlm.nih.gov/16812304/},
  note = {Source identifier: 16812304}
}