@article{ref1,
title="Occupational medicine in small and medium enterprises in industrialized and developing countries",
journal="Medizinische Klinik [Urban und Schwarzenberg]",
year="1978",
author="Beckenkamp, H. W. and Tolonen, M.",
volume="73",
number="38",
pages="1327-1333",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0025-8458",
doi="",
url="http://dx.doi.org/"
}