TY  - RPRT
TI  - Conditional discrimination and stimulus patterning.
AU  - A J NORTH
AU  - O MALLER
AU  - C HUGHES
PY  - 1958
DO  - 10.1037/h0038289
UR  - https://pubmed.ncbi.nlm.nih.gov/13620810/
ID  - 13620810
ER  -