@misc{indiciae9603878dc30f,
  title = {Interresponse-time sensitivity during discrete-trial and free-operant concurrent variable-interval schedules.},
  author = {J M Cleaveland},
  year = {1999},
  doi = {10.1901/jeab.1999.72-317},
  url = {https://pubmed.ncbi.nlm.nih.gov/10605102/},
  note = {Source identifier: 10605102}
}