@article{ref1,
title="Injuries of the upper segment of the cervical spine",
journal="Chirurgia Narzadow Ruchu i Ortopedia Polska",
year="1984",
author="Kiwerski, J. E.",
volume="49",
number="2",
pages="105-110",
abstract="<p>[Abstract unavailable]</p><p>Language: pl</p>",
language="pl",
issn="0009-479X",
doi="",
url="http://dx.doi.org/"
}