TY  - RPRT
TI  - Visual contrast sensitivity functions obtained with colored and achromatic gratings.
AU  - M A Nelson
AU  - R L Halberg
PY  - 1979
DO  - 10.1177/001872087902100210
UR  - https://pubmed.ncbi.nlm.nih.gov/489022/
ID  - 489022
ER  -