TY  - RPRT
TI  - Automatic exposure control in general radiography.
AU  - A D Smythe
PY  - 1966
DO  - 10.1111/j.1440-1673.1966.tb00808.x
UR  - https://pubmed.ncbi.nlm.nih.gov/5975149/
ID  - 5975149
ER  -