@article{ref1,
title="Depression, suicidal preoccupation, and rational thinking",
journal="Journal of general psychology",
year="1989",
author="Lester, David",
volume="116",
number="2",
pages="221-223",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-1309",
doi="",
url="http://dx.doi.org/"
}