@misc{indiciae9e22514b11d9,
  title = {Drug discrimination under a concurrent schedule.},
  author = {S H Snodgrass and D E McMillan},
  year = {1996},
  doi = {10.1901/jeab.1996.65-495},
  url = {https://pubmed.ncbi.nlm.nih.gov/8636660/},
  note = {Source identifier: 8636660}
}