TY  - RPRT
TI  - Relationship between response rate and reinforcement frequency in variable-interval schedules: the effect of the concentration of sucrose reinforcement.
AU  - C M Bradshaw
AU  - E Szabadi
AU  - P Bevan
PY  - 1978
DO  - 10.1901/jeab.1978.29-447
UR  - https://pubmed.ncbi.nlm.nih.gov/16812068/
ID  - 16812068
ER  -