TY  - RPRT
TI  - Subitizing: direct apprehension or serial processing?
AU  - C L Folk
AU  - H Egeth
AU  - H W Kwak
PY  - 1988
DO  - 10.3758/bf03210412
UR  - https://pubmed.ncbi.nlm.nih.gov/3226878/
ID  - 3226878
ER  -