@article{ref1,
title="First Analysis of One Hundred and Seventy-Seven Magnetic Storms, Registered by the Magnetic Instruments in the Royal Observatory, Greenwich, from 1841 to 1857",
journal="Philosophical transactions of the Royal Society of London",
year="1863",
author="Airy, George Biddell",
volume="153",
number="",
pages="617-648",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0261-0523",
doi="",
url="http://dx.doi.org/"
}