@article{ref1,
title="Hearing study in the framework of a general work fitness examination",
journal="Zentralblatt fur Arbeitsmedizin, Arbeitsschutz und Prophylaxe",
year="1979",
author="Hipp, P.",
volume="29",
number="11",
pages="293-294",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0340-7047",
doi="",
url="http://dx.doi.org/"
}