@article{ref1,
title="The use of chemical spot tests kits for the presumptive identification of narcotics and drugs of abuse",
journal="Journal of forensic sciences",
year="1974",
author="Velapoldi, R. A. and Wicks, S. A.",
volume="19",
number="3",
pages="636-656",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-1198",
doi="",
url="http://dx.doi.org/"
}