@article{ref1,
title="Preventive medicine in the industry",
journal="Munchener Medizinische Wochenschrift",
year="1966",
author="Mittag, G.",
volume="108",
number="18",
pages="979-984",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0027-2973",
doi="",
url="http://dx.doi.org/"
}