@article{ref1,
title="Physiology of the healing of bone fractures",
journal="Hefte zur Unfallheilkunde",
year="1956",
author="Schaefer, V.",
volume="52",
number="",
pages="59-64",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0085-1469",
doi="",
url="http://dx.doi.org/"
}