@article{ref1,
title="Class characteristics of shotguns from shell markings",
journal="Canadian Society of Forensic Science journal",
year="1971",
author="McKay, S. A.",
volume="4",
number="1",
pages="10-16",
abstract="In this paper, it is proposed to investigate the class characteristics of shotguns with specific reference to the breech-face, extractor and ejector markings. The guns examined were taken from the Standards Collection or borrowed from various sources, in an attempt to cover as many makes and models as possible.<p />",
language="en",
issn="0834-7646",
doi="10.1080/00085030.1971.10757280",
url="http://dx.doi.org/10.1080/00085030.1971.10757280"
}