@article{ref1,
title="10 year study on drug problems in youth from the viewpoint of preventive medicine",
journal="Medizinische Welt",
year="1976",
author="Biener, K.",
volume="27",
number="19",
pages="908-911",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0025-8512",
doi="",
url="http://dx.doi.org/"
}