@article{ref1,
title="Industrial medicine. Juvenile labor",
journal="Munchener Medizinische Wochenschrift",
year="1969",
author="Lederer, E.",
volume="111",
number="44",
pages="2314-2331",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0027-2973",
doi="",
url="http://dx.doi.org/"
}