@article{ref1,
title="Job satisfaction and job-related health disturbances among air traffic controllers",
journal="Internationales Archiv für Arbeitsmedizin",
year="1972",
author="Singer, R. and Rutenfranz, J.",
volume="30",
number="2",
pages="135-160",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0020-5923",
doi="",
url="http://dx.doi.org/"
}