@article{ref1,
title="Child and large city",
journal="Fortschritte der Medizin",
year="1974",
author="Biermann, G.",
volume="92",
number="28",
pages="1095-6,1121",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0015-8178",
doi="",
url="http://dx.doi.org/"
}