TY  - RPRT
TI  - Methylphenidate and stimulus control of avoidance behavior.
AU  - R Stretch
AU  - N Skinner
PY  - 1967
DO  - 10.1901/jeab.1967.10-485
UR  - https://pubmed.ncbi.nlm.nih.gov/6050059/
ID  - 6050059
ER  -