@article{ref1,
title="The concept of ambivalence with reference to alcohol use and misuse in American culture",
journal="International journal of social psychiatry",
year="1968",
author="Verden, P.",
volume="14",
number="4",
pages="252-259",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0020-7640",
doi="",
url="http://dx.doi.org/"
}