@article{ref1,
title="Thoracic injuries in the aged",
journal="Langenbecks archiv fur klinische chirurgie",
year="1957",
author="Kaulbach, W. and Gomez-ferrer, F.",
volume="285",
number="6",
pages="581-590",
abstract="<p>[Abstract unavailable]</p> <p>Language: de</p>",
language="de",
issn="0174-4542",
doi="",
url="http://dx.doi.org/"
}