TY  - RPRT
TI  - Motion detection is dependent on spatial frequency not size.
AU  - J C Boulton
AU  - C L Baker
PY  - 1991
DO  - 10.1016/0042-6989(91)90075-g
UR  - https://pubmed.ncbi.nlm.nih.gov/2006556/
ID  - 2006556
ER  -