TY  - RPRT
TI  - Concept difficulty as a function of stimulus similarity.
AU  - L Sechrest
AU  - J S Kaas
PY  - 1965
DO  - 10.1037/h0022669
UR  - https://pubmed.ncbi.nlm.nih.gov/5839792/
ID  - 5839792
ER  -