@article{ref1,
title="Hill-climbing ability of motor trucks",
journal="Highway Research Board proceedings",
year="1941",
author="Saal, Carl C. and Lay, W.e. and Thompson, J.t. and Agg, T.r.",
volume="",
number="",
pages="-",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0096-1027",
doi="",
url="http://dx.doi.org/"
}