@misc{indiciaef248185c6fcf, title = {Free-operant performance on variable interval schedules with a linear feedback loop: no evidence for molar sensitivities in rats.}, author = {P Reed and M Soh and T Hildebrandt and J DeJongh and W Y Shek}, year = {2000}, doi = {10.1037//0097-7403.26.4.416}, url = {https://pubmed.ncbi.nlm.nih.gov/11056882/}, note = {Source identifier: 11056882} }