TY  - RPRT
TI  - Relationship between response rate and reinforcement frequency in variable-interval schedules: III. The effect of d-amphetamine.
AU  - C M Bradshaw
AU  - H V Ruddle
AU  - E Szabadi
PY  - 1981
DO  - 10.1901/jeab.1981.36-29
UR  - https://pubmed.ncbi.nlm.nih.gov/7241036/
ID  - 7241036
ER  -