Richard Hartley, James P. Scott, Roger L. Hayen. Check Digits: Domain Implementation in Microcomputer Databases. JISE, 4(2):17-20, 1992. [doi]
@article{HartleySH92,
title = {Check Digits: Domain Implementation in Microcomputer Databases},
author = {Richard Hartley and James P. Scott and Roger L. Hayen},
year = {1992},
url = {https://jise.org/Volume4/n2/JISEv4n2p17.html},
researchr = {https://researchr.org/publication/HartleySH92},
cites = {0},
citedby = {0},
journal = {JISE},
volume = {4},
number = {2},
pages = {17-20},
}