@article{ref1,
title="Development of drug use in 19 and 20 year old adolescents. A comparison in the canton of Zurich between 1971, 1974 and 1978",
journal="Schweizerische Medizinische Wochenschrift",
year="1979",
author="Binder, J. and Sieber, M. and Angst, J.",
volume="109",
number="36",
pages="1331-1335",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0036-7672",
doi="",
url="http://dx.doi.org/"
}