@article{ref1,
title="Abdominal injuries: injuries of the digestive tract and retroperitoneal organs",
journal="Helvetica Chirurgica Acta",
year="1977",
author="Allgöwer, M.",
volume="44",
number="1-2",
pages="63-72",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0018-0181",
doi="",
url="http://dx.doi.org/"
}