@article{ref1,
title="On the incidence of accidents in childhood",
journal="Zeitschrift für Kinderheilkunde",
year="1960",
author="van der Leyen, U. E.",
volume="83",
number="",
pages="319-331",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0044-2917",
doi="",
url="http://dx.doi.org/"
}