@misc{indiciae418214fe2df4,
  title = {Matching in concurrent variable-interval avoidance schedules.},
  author = {A W Logue and P A De Villiers},
  year = {1978},
  doi = {10.1901/jeab.1978.29-61},
  url = {https://pubmed.ncbi.nlm.nih.gov/16812039/},
  note = {Source identifier: 16812039}
}