@article{ref1,
title="A Sociological-Analysis of Criminal Homicide",
journal="Federal probation",
year="1961",
author="Wolfgang, M. E.",
volume="25",
number="1",
pages="48-55",
abstract="[Abstract unavailable]  <p>Language: en</p>",
language="en",
issn="0014-9128",
doi="",
url="http://dx.doi.org/"
}