@article{ref1,
title="Drug use and four kinds of novelty-seeking",
journal="British journal of addiction to alcohol and other drugs",
year="1977",
author="Annis, H. M. and Kohn, P. M.",
volume="72",
number="2",
pages="135-141",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0007-0890",
doi="",
url="http://dx.doi.org/"
}