@article{ref1,
title="Calcium nitrate fertilizer poisoning",
journal="Zentralblatt fur Arbeitsmedizin und Arbeitsschutz",
year="1958",
author="Olk, W.",
volume="8",
number="3",
pages="63-65",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0044-4049",
doi="",
url="http://dx.doi.org/"
}