@article{ref1,
title="On the drug dependence of the cannabis type (hashish, marihuana)",
journal="Schweizerische Medizinische Wochenschrift",
year="1969",
author="Battegay, R. and Bäumler, J. and Gnirss, F. and Ladewig, D.",
volume="99",
number="27",
pages="965-971",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0036-7672",
doi="",
url="http://dx.doi.org/"
}