@article{ref1,
title="Scaffolding accidents. Attempt to categorize their causes",
journal="Zentralblatt fur Arbeitsmedizin und Arbeitsschutz",
year="1970",
author="von Chossy, A.",
volume="20",
number="9",
pages="268-272",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0044-4049",
doi="",
url="http://dx.doi.org/"
}