TY  - RPRT
TI  - Amphetamine self-administration by humans: modulation by contingencies associated with task performance.
AU  - S D Comer
AU  - M Haney
AU  - R W Foltin
AU  - M W Fischman
PY  - 1996
DO  - 10.1007/bf02805973
UR  - https://pubmed.ncbi.nlm.nih.gov/8880942/
ID  - 8880942
ER  -