@article{ref1,
title="Effects of d-amphetamine on schedule-controlled key pressing and drinking in the chimpanzee",
journal="Journal of pharmacology and experimental therapeutics",
year="1973",
author="Byrd, L. D.",
volume="185",
number="3",
pages="633-641",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-3565",
doi="",
url="http://dx.doi.org/"
}