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JEAB.1991.56-261
JEAB.1991.56-261
http://dx.doi.org/10.1901/JEAB.1991.56-261
Cocaine and food as reinforcers: effects of reinforcer magnitude and response requirement under second-order fixed-ratio and progressive-ratio schedules.
P356
Q30539374-EB023327-8316-4A4A-9154-DCDACE1C5C0D
P356
JEAB.1991.56-261
http://dx.doi.org/10.1901/JEAB.1991.56-261