@misc{indiciaef3407b0e30e3,
  title = {A program nucleus for encoding and decoding calendar dates.},
  author = {H P Sinn},
  year = {1986},
  doi = {10.1016/0169-2607(86)90066-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/3816179/},
  note = {Source identifier: 3816179}
}