TY  - RPRT
TI  - Delayed reward, delay-box confinement, and instrumental performance: a within-type design.
AU  - E L Wike
AU  - R L Mellgren
AU  - C A Cour
PY  - 1967
DO  - 10.2466/pr0.1967.21.3.857
UR  - https://pubmed.ncbi.nlm.nih.gov/6079653/
ID  - 6079653
ER  -