@article{ref1,
title="Foreign body injuries in the x-ray picture",
journal="Zeitschrift für Allgemeinmedizin",
year="1974",
author="Birzle, H.",
volume="50",
number="1",
pages="9-13",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0300-8673",
doi="",
url="http://dx.doi.org/"
}