@article{ref1,
title="The use of disposable hypodermic syringes for collection of mine atmosphere samples",
journal="American Industrial Hygiene Association journal",
year="1969",
author="Lang, H. W. and Freedman, R. W.",
volume="30",
number="5",
pages="523-526",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-8894",
doi="",
url="http://dx.doi.org/"
}