@article{ref1,
title="On the illumination of light-houses",
journal="Philosophical transactions of the Royal Society of London",
year="1830",
author="Drummond, Thomas",
volume="120",
number="",
pages="383-398",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0261-0523",
doi="",
url="http://dx.doi.org/"
}