@article{ref1,
title="Evaluation of the effectivenss of personal protective devices at working sites with high concentrations of mercury vapors",
journal="Zentralblatt fur Arbeitsmedizin und Arbeitsschutz",
year="1975",
author="Kobal, A.",
volume="25",
number="12",
pages="366-371",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0044-4049",
doi="",
url="http://dx.doi.org/"
}