@article{ref1,
title="Shades of grey: some observations on Sobell and Sobell's "Controlled drinking after 25 years: how important was the great debate?"",
journal="Addiction",
year="1996",
author="Ryder, D.",
volume="91",
number="4",
pages="603-604",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0965-2140",
doi="",
url="http://dx.doi.org/"
}