@article{ref1,
title="Frequency of blood alcohol concentrations over 0.3(per mille) (West Berlin 1956-76)",
journal="Blutalkohol",
year="1977",
author="Helmbrecht, J and Krauland, W.",
volume="14",
number="1",
pages="12-18",
abstract="<p>[Abstract unavailable]</p>",
language="de",
issn="0006-5250",
doi="",
url="http://dx.doi.org/"
}