@misc{indiciae193e8e0057d1,
  title = {Response and time allocation in concurrent second-order schedules.},
  author = {P G Beautrais and M C Davison},
  year = {1977},
  doi = {10.1901/jeab.1977.27-61},
  url = {https://pubmed.ncbi.nlm.nih.gov/16811981/},
  note = {Source identifier: 16811981}
}