@article{ref1,
title="Causes, incidence and appearance of periorbital fractures",
journal="Fortschritte der Kiefer- und Gesichts-Chirurgie",
year="1977",
author="Deutschländer-Wolff, J. and Riediger, D. and Veigel, W.",
volume="22",
number="",
pages="10-12",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0071-7916",
doi="",
url="http://dx.doi.org/"
}