@article{ref1,
title="Skiing and the spine",
journal="Munchener Medizinische Wochenschrift",
year="1961",
author="Baumgartner, W.",
volume="103",
number="",
pages="507-509",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0027-2973",
doi="",
url="http://dx.doi.org/"
}