@article{ref1,
title="Comments on the drug abuse problem",
journal="Experientia, Supplementum",
year="1972",
author="Goldstein, A.",
volume="17",
number="",
pages="335-344",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0071-335X",
doi="",
url="http://dx.doi.org/"
}