TY  - RPRT
TI  - Limiting factors in threshold and suprathreshold vision.
AU  - G A Hay
AU  - M S Chesters
PY  - 1970
DO  - 10.1038/2281216a0
UR  - https://pubmed.ncbi.nlm.nih.gov/5487256/
ID  - 5487256
ER  -