@article{ref1,
title="The problem of passive smoking. II. Investigations of CO level in the automobile ater cigarette smoking",
journal="Internationales Archiv für Arbeitsmedizin",
year="1974",
author="Harke, H. P. and Liedl, W. and Denker, D.",
volume="33",
number="3",
pages="207-220",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0020-5923",
doi="",
url="http://dx.doi.org/"
}