TY  - RPRT
TI  - Impulse counter for checking x-ray timers.
AU  - B R STEPHENSON
AU  - E G ESCHNER
PY  - 1951
DO  - 10.1148/57.1.104
UR  - https://pubmed.ncbi.nlm.nih.gov/14854191/
ID  - 14854191
ER  -