@misc{indiciae9b0e93d729ee,
  title = {Reinforcer concentration effects on a fixed-interval schedule.},
  author = {Frances J Blomeley and C F Lowe and J H Wearden},
  year = {2004},
  doi = {10.1016/j.beproc.2004.02.005},
  url = {https://pubmed.ncbi.nlm.nih.gov/15182926/},
  note = {Source identifier: 15182926}
}