@article{ref1,
title="Updating the NAGCAT tractor guidelines to reflect the latest scientific evidence",
journal="Journal of agromedicine",
year="2014",
author="Hard, David and Schwebel, David C. and Ellis, Tammy and Marlenga, Barbara",
volume="19",
number="2",
pages="214-214",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1059-924X",
doi="10.1080/1059924X.2014.891474",
url="http://dx.doi.org/10.1080/1059924X.2014.891474"
}