@article{ref1,
title="Driving fitness and oral contraceptives",
journal="Deutsche Medizinische Wochenschrift",
year="1973",
author="Humke, W.",
volume="98",
number="23",
pages="1191-1191",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0012-0472",
doi="",
url="http://dx.doi.org/"
}