TY  - RPRT
TI  - Uncertainty about spatial frequency, spatial position, or contrast of visual patterns.
AU  - E T Davis
AU  - P Kramer
AU  - N Graham
PY  - 1983
DO  - 10.3758/bf03205862
UR  - https://pubmed.ncbi.nlm.nih.gov/6844089/
ID  - 6844089
ER  -