TY  - RPRT
TI  - [Photometer for counting photons].
AU  - R Fayolle
AU  - G Cadenel
PY  - 1974
DO  - 10.1007/bf02477163
UR  - https://pubmed.ncbi.nlm.nih.gov/4466974/
ID  - 4466974
ER  -