TY  - RPRT
TI  - What makes a categorization task difficult?
AU  - Leola A Alfonso-Reese
AU  - F Gregory Ashby
AU  - David H Brainard
PY  - 2002
DO  - 10.3758/bf03194727
UR  - https://pubmed.ncbi.nlm.nih.gov/12132759/
ID  - 12132759
ER  -