@article{ref1,
title="Possible health hazards in welding",
journal="Zeitschrift fur Unfallmedizin und Berufskrankheiten",
year="1979",
author="Wittgens, H.",
volume="72",
number="3",
pages="122-127",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0044-3603",
doi="",
url="http://dx.doi.org/"
}