@article{ref1,
title="The average ethanol content of beer in the U.S. and individual state: estimates for use in aggregate consumption statistics",
journal="Journal of studies on alcohol",
year="2003",
author="Kerr, William C. and Greenfield, Thomas K.",
volume="64",
number="3",
pages="439-440",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0096-882X",
doi="",
url="http://dx.doi.org/"
}