@article{ref1,
title="Analysis of research on noise effects over the past 25 years with reference to the night aircraft noise problem. Reliable knowledge, effects",
journal="Schriftenreihe des Vereins für Wasser-, Boden- und Lufthygiene",
year="2001",
author="Ising, H. and Kruppa, B.",
volume="",
number="111",
pages="44-55",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0300-8665",
doi="",
url="http://dx.doi.org/"
}