@article{ref1,
title="On and off the wagon. Reasons for drinking and abstaining by alcoholics",
journal="Quarterly journal of studies on alcohol",
year="1972",
author="Ludwig, A. M.",
volume="33",
number="1",
pages="91-96",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0033-5649",
doi="",
url="http://dx.doi.org/"
}