TY  - RPRT
TI  - Perceived relative depth from velocity gradients: a model.
AU  - M L Braunstein
AU  - G J Andersen
PY  - 1981
DO  - 10.1016/0001-6918(81)90061-5
UR  - https://pubmed.ncbi.nlm.nih.gov/7306263/
ID  - 7306263
ER  -