TY  - RPRT
TI  - Shape from shadows.
AU  - P Cavanagh
AU  - Y G Leclerc
PY  - 1989
DO  - 10.1037//0096-1523.15.1.3
UR  - https://pubmed.ncbi.nlm.nih.gov/2522531/
ID  - 2522531
ER  -