@article{ref1,
title="A concept for problem drinking",
journal="Alcohol and alcoholism supplement",
year="1991",
author="Elvy, G.",
volume="1",
number="",
pages="481-486",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1358-6173",
doi="",
url="http://dx.doi.org/"
}