@article{ref1,
title="Head injuries in private farming",
journal="Przeglad Lekarski",
year="1970",
author="Sladki, E. and Seweryn, Z. and Wegienko, A.",
volume="26",
number="3",
pages="380-383",
abstract="<p>[Abstract unavailable]</p><p>Language: pl</p>",
language="pl",
issn="0033-2240",
doi="",
url="http://dx.doi.org/"
}