@article{ref1,
title="A comparison of tractor rear tyres in their resistance to side slip",
journal="Journal of agricultural engineering research",
year="1972",
author="Baker, C. J. and Collins, R. M.",
volume="17",
number="1",
pages="64-70",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0021-8634",
doi="10.1016/S0021-8634(72)80015-5",
url="http://dx.doi.org/10.1016/S0021-8634(72)80015-5"
}