TY  - RPRT
TI  - Need probability affects retention: a direct demonstration.
AU  - R B Anderson
AU  - R D Tweney
AU  - M Rivardo
AU  - S Duncan
PY  - 1997
DO  - 10.3758/bf03211331
UR  - https://pubmed.ncbi.nlm.nih.gov/9421573/
ID  - 9421573
ER  -