TY  - RPRT
TI  - Why is second-order vision less efficient than first-order vision?
AU  - Velitchko Manahilov
AU  - William A Simpson
AU  - Julie Calvert
PY  - 2005
DO  - 10.1016/j.visres.2005.06.004
UR  - https://pubmed.ncbi.nlm.nih.gov/16039689/
ID  - 16039689
ER  -