TY  - RPRT
TI  - Different parameters control motion perception above and below a critical density.
AU  - J C Boulton
AU  - C L Baker
PY  - 1993
DO  - 10.1016/0042-6989(93)90171-r
UR  - https://pubmed.ncbi.nlm.nih.gov/8266636/
ID  - 8266636
ER  -