TY  - RPRT
TI  - Visual perception of rigidity of solid shape.
AU  - J J Koenderink
AU  - A J van Doorn
PY  - 1976
DO  - 10.1007/bf00307859
UR  - https://pubmed.ncbi.nlm.nih.gov/1022824/
ID  - 1022824
ER  -