@article{ref1,
title="Analysis of causes of multiple injuries in our records",
journal="Polski przeglad chirurgiczny",
year="1974",
author="Pietrak, A.",
volume="46",
number="4",
pages="519-522",
abstract="<p>[Abstract unavailable]</p><p>Language: pl</p>",
language="pl",
issn="0032-373X",
doi="",
url="http://dx.doi.org/"
}