@article{ref1,
title="Efficiency in traffic after the use of central stimulants",
journal="Arzneimittel-Forschung",
year="1962",
author="Kraft, H. G.",
volume="12",
number="",
pages="1071-1074",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0004-4172",
doi="",
url="http://dx.doi.org/"
}