TY  - RPRT
TI  - Learning several concept-identification problems concurrently: a test of the sampling-with-replacement assumption.
AU  - J R Erickson
AU  - M M Zajkowski
PY  - 1967
DO  - 10.1037/h0024595
UR  - https://pubmed.ncbi.nlm.nih.gov/6048459/
ID  - 6048459
ER  -