@article{ref1,
title="Personal motivation, environmental factors, and the extent of drug comsumption of adolescents",
journal="Nervenarzt",
year="1976",
author="Hell, D. and Battegay, R. and Mühlemann, R. and Dillinger, A.",
volume="47",
number="6",
pages="402-406",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0028-2804",
doi="",
url="http://dx.doi.org/"
}