@article{ref1,
title="Injuries of the frontal sinus in cranial trauma",
journal="Polski Tygodnik Lekarski",
year="1963",
author="Szpunar, J.",
volume="18",
number="",
pages="1483-1484",
abstract="<p>[Abstract unavailable]</p><p>Language: pl</p>",
language="pl",
issn="0032-3756",
doi="",
url="http://dx.doi.org/"
}