@article{ref1,
title="Sir Humphry Davy and his safety lamp for coal miners",
journal="Mayo Clinic proceedings",
year="1968",
author="Keys, T. E.",
volume="43",
number="12",
pages="865-891",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0025-6196",
doi="",
url="http://dx.doi.org/"
}