TY  - RPRT
TI  - Contrast-difference thresholds with sinusoidal gratings.
AU  - Y Kohayakawa
PY  - 1972
DO  - 10.1364/josa.62.000584
UR  - https://pubmed.ncbi.nlm.nih.gov/5019596/
ID  - 5019596
ER  -