@article{ref1,
title="Use of the reinforcement survey schedule with alcoholics",
journal="Quarterly journal of studies on alcohol",
year="1970",
author="Keehn, J. D. and Bloomfield, F. F. and Hug, M. A.",
volume="31",
number="3",
pages="602-615",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0033-5649",
doi="",
url="http://dx.doi.org/"
}