TY  - RPRT
TI  - What did we do before computers?
AU  - H Barry Collin
PY  - 2004
DO  - 10.1111/j.1444-0938.2004.tb03093.x
UR  - https://pubmed.ncbi.nlm.nih.gov/15575806/
ID  - 15575806
ER  -