@article{ref1,
title="Television violence. Guidelines for evaluation",
journal="Archives of general psychiatry",
year="1971",
author="Heller, M. S. and Polsky, S.",
volume="24",
number="3",
pages="279-285",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0003-990X",
doi="",
url="http://dx.doi.org/"
}