@article{ref1,
title="Causes of behavior problems in cats",
journal="Deutsche Tierarztliche Wochenschrift DTW",
year="1991",
author="Schär, R.",
volume="98",
number="1",
pages="13-15",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0341-6593",
doi="",
url="http://dx.doi.org/"
}