TY  - RPRT
TI  - One-trial learning with control of item-difficulty.
AU  - S A Pizzurro
AU  - J Van Laer
PY  - 1968
DO  - 10.1080/14640746808400143
UR  - https://pubmed.ncbi.nlm.nih.gov/5653418/
ID  - 5653418
ER  -