@misc{indiciae6a78d1f17eec,
  title = {Preference for fixed-interval schedules: effects of unequal initial links.},
  author = {M C Davison},
  year = {1976},
  doi = {10.1901/jeab.1976.25-371},
  url = {https://pubmed.ncbi.nlm.nih.gov/16811921/},
  note = {Source identifier: 16811921}
}