TY  - RPRT
TI  - The visual processes underlying binocular brightness summation.
AU  - G R Engel
PY  - 1967
DO  - 10.1016/0042-6989(67)90038-7
UR  - https://pubmed.ncbi.nlm.nih.gov/5608664/
ID  - 5608664
ER  -