@article{ref1,
title="The effects of observing violence",
journal="Scientific American",
year="1964",
author="Berkowitz, Leonard",
volume="210",
number="",
pages="35-41",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0036-8733",
doi="",
url="http://dx.doi.org/"
}