TY  - RPRT
TI  - An improved apparatus for scotometry.
AU  - J P LLOYD
AU  - A C HOULTON
AU  - V PURVIS
PY  - 1953
DO  - 10.1016/0002-9394(53)91898-4
UR  - https://pubmed.ncbi.nlm.nih.gov/13090260/
ID  - 13090260
ER  -