@article{ref1,
title="In the maze of habit and addiction",
journal="British journal of addiction to alcohol and other drugs",
year="1966",
author="Meng, H.",
volume="61",
number="3",
pages="213-222",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0007-0890",
doi="",
url="http://dx.doi.org/"
}