@article{ref1,
title="The tornado: Espy's experiments",
journal="Science",
year="1890",
author="Hazen, H. A.",
volume="15",
number="386",
pages="386-388",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0036-8075",
doi="10.1126/science.ns-15.386.386",
url="http://dx.doi.org/10.1126/science.ns-15.386.386"
}