@misc{indiciaea12e938db87a,
  title = {Age effects in simple prediction of a repeating binary event pattern.},
  author = {A J Sanford and E Ball},
  year = {1972},
  doi = {10.1159/000211933},
  url = {https://pubmed.ncbi.nlm.nih.gov/4660636/},
  note = {Source identifier: 4660636}
}