@misc{indiciaee1dd1e0be690, title = {Effects of ethanol on multiple fixed-interval fixed-ratio schedule performances: dynamic interactions at different fixed-ratio values.}, author = {J E Barrett and J A Stanley}, year = {1980}, doi = {10.1901/jeab.1980.34-185}, url = {https://pubmed.ncbi.nlm.nih.gov/7411015/}, note = {Source identifier: 7411015} }