TY  - RPRT
TI  - The spatial frequency discrimination function at low contrasts.
AU  - M Woodward
AU  - E R Ettinger
AU  - D Yager
PY  - 1985
DO  - 10.1163/156856885x00035
UR  - https://pubmed.ncbi.nlm.nih.gov/3940044/
ID  - 3940044
ER  -