@article{ref1,
title="The problem of passive smoking. III. The influence of smoking on the CO concentration in driving automobiles",
journal="Internationales Archiv für Arbeitsmedizin",
year="1974",
author="Harke, H. P. and Peters, H.",
volume="33",
number="3",
pages="221-229",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0020-5923",
doi="",
url="http://dx.doi.org/"
}