@article{ref1,
title="Remarks on the effects of loudspeaker systems in public transportation and recreation establishments",
journal="Zeitschrift fur Arztliche Fortbildung (Jena)",
year="1956",
author="Grimm, H.",
volume="50",
number="10",
pages="435-438",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0044-2178",
doi="",
url="http://dx.doi.org/"
}