@misc{indiciaeae09403a4be9,
  title = {Matching since Baum (1979).},
  author = {J H Wearden and I S Burgess},
  year = {1982},
  doi = {10.1901/jeab.1982.38-339},
  url = {https://pubmed.ncbi.nlm.nih.gov/7175431/},
  note = {Source identifier: 7175431}
}