TY  - RPRT
TI  - Difference limen as a function of retinal eccentricity and background brightness.
AU  - P M BLOUGH
PY  - 1958
DO  - 10.1364/josa.48.000731
UR  - https://pubmed.ncbi.nlm.nih.gov/13576258/
ID  - 13576258
ER  -