TY  - RPRT
TI  - Brightness functions for a complex field with changing illumination and background.
AU  - H R Flock
AU  - K Noguchi
PY  - 1973
DO  - 10.1037/h0082452
UR  - https://pubmed.ncbi.nlm.nih.gov/4696072/
ID  - 4696072
ER  -