@misc{indiciae085df1d79878, title = {Ethanol reinforced behavior assessed with a concurrent schedule.}, author = {T A Roehrs and H H Samson}, year = {1981}, doi = {10.1016/0091-3057(81)90204-5}, url = {https://pubmed.ncbi.nlm.nih.gov/7291257/}, note = {Source identifier: 7291257} }