@article{ref1,
title="Health hazards in industry caused by vanadium",
journal="Zentralblatt fur Arbeitsmedizin und Arbeitsschutz",
year="1969",
author="Schümann-Vogt, B.",
volume="19",
number="2",
pages="33-39",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0044-4049",
doi="",
url="http://dx.doi.org/"
}