@article{ref1,
title="Foreign substances in food",
journal="Zeitschrift für Ernährungswissenschaft. Supplementa",
year="1973",
author="Lang, K.",
volume="16",
number="",
pages="95-110",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0084-5337",
doi="",
url="http://dx.doi.org/"
}