@article{ref1,
title="Homicide trends in the United States, 1900-74",
journal="Public health reports (1974)",
year="1975",
author="Klebba, A. J.",
volume="90",
number="3",
pages="195-204",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0033-3549",
doi="",
url="http://dx.doi.org/"
}