@article{ref1,
title="Comparative studies of children from Berlin and West Germany who are sent to recreation places",
journal="Öffentliche Gesundheitsdienst",
year="1953",
author="Kohmann, H.",
volume="15",
number="1",
pages="9-18",
abstract="<p>[Abstract unavailable]</p><p>Language: un</p>",
language="un",
issn="",
doi="",
url="http://dx.doi.org/"
}