TY  - RPRT
TI  - Developments in liquid scintillation counting since 1963.
AU  - J H Parmentier
AU  - F E ten Haaf
PY  - 1969
DO  - 10.1016/0020-708x(69)90119-7
UR  - https://pubmed.ncbi.nlm.nih.gov/4891907/
ID  - 4891907
ER  -