@article{ref1,
title="Suicide and the pleasure-pain principle of life",
journal="Zeitschrift für Psychotherapie und medizinische Psychologie",
year="1969",
author="Biran, S.",
volume="19",
number="2",
pages="51-58",
abstract="<p>[Abstract unavailable]</p> <p>Language: de</p>",
language="de",
issn="0044-3417",
doi="",
url="http://dx.doi.org/"
}