@article{ref1,
title="Social science: the mathematics of murder",
journal="Nature",
year="2013",
author="Lo, Adeline and Fowler, James H.",
volume="501",
number="7466",
pages="170-171",
abstract="<p>A mathematical model of gun ownership has been developed that clarifies the debate on gun control and tentatively suggests that firearms restrictions may reduce the homicide rate.</p> <p>Language: en</p>",
language="en",
issn="0028-0836",
doi="10.1038/501170a",
url="http://dx.doi.org/10.1038/501170a"
}