@article{ref1,
title="On the Structure of Lavas Which Have Consolidated on Steep Slopes; With Remarks on the Mode of Origin of Mount Etna, and on the Theory of "Craters of Elevation"",
journal="Philosophical transactions of the Royal Society of London",
year="1858",
author="Lyell, Charles",
volume="148",
number="",
pages="703-904",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0261-0523",
doi="",
url="http://dx.doi.org/"
}