@article{ref1,
title="Isolated perforation of the orbital fundus by a fragment of tree branch wedged into the maxillary sinus",
journal="Klinika Oczna",
year="1988",
author="Krwawicz, L.",
volume="90",
number="3",
pages="110-111",
abstract="<p>[Abstract unavailable]</p><p>Language: pl</p>",
language="pl",
issn="0023-2157",
doi="",
url="http://dx.doi.org/"
}