TY  - RPRT
TI  - Projective invariance and visual shape constancy.
AU  - K K Niall
AU  - J MacNamara
PY  - 1989
DO  - 10.1016/0001-6918(89)90051-6
UR  - https://pubmed.ncbi.nlm.nih.gov/2801171/
ID  - 2801171
ER  -