@article{ref1,
title="A tornado warning mechanism for isolated communities, farms and ranches",
journal="South Dakota journal of medicine",
year="1971",
author="Gregg, J. B.",
volume="24",
number="6",
pages="15-15",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0038-3317",
doi="",
url="http://dx.doi.org/"
}