@article{ref1,
title="Occupational health risks from physical hazards and hard physical work in construction",
journal="Zeitschrift fur die Gesamte Hygiene und Ihre Grenzgebiete",
year="1979",
author="Häublein, H. G. and Heuchert, G.",
volume="25",
number="10",
pages="725-737",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0049-8610",
doi="",
url="http://dx.doi.org/"
}