TY  - RPRT
TI  - A program nucleus for encoding and decoding calendar dates.
AU  - H P Sinn
PY  - 1986
DO  - 10.1016/0169-2607(86)90066-0
UR  - https://pubmed.ncbi.nlm.nih.gov/3816179/
ID  - 3816179
ER  -