@article{ref1,
title="Roentgen diagnostics of the spine",
journal="Radiologe, Der",
year="1972",
author="Diethelm, L. and Köstner, P.",
volume="12",
number="9",
pages="281-287",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0033-832X",
doi="",
url="http://dx.doi.org/"
}