@article{ref1,
title="Analysis of cause of death of 309 elderly patients with femoral fractures near the hip joint",
journal="Zeitschrift fur Arztliche Fortbildung (Jena)",
year="1974",
author="Kopp, P.",
volume="68",
number="5",
pages="258-264",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0044-2178",
doi="",
url="http://dx.doi.org/"
}