TY  - RPRT
TI  - Apparent surface curvature affects lightness perception.
AU  - D C Knill
AU  - D Kersten
PY  - 1991
DO  - 10.1038/351228a0
UR  - https://pubmed.ncbi.nlm.nih.gov/2041568/
ID  - 2041568
ER  -