@misc{indiciae600698f8d7f5, title = {Relationship between response rate and reinforcement frequency in variable-interval schedules: the effect of the concentration of sucrose reinforcement.}, author = {C M Bradshaw and E Szabadi and P Bevan}, year = {1978}, doi = {10.1901/jeab.1978.29-447}, url = {https://pubmed.ncbi.nlm.nih.gov/16812068/}, note = {Source identifier: 16812068} }