@article{ref1,
title="Bibliography of tractive resistance and allied problems",
journal="Highway Research Board proceedings",
year="1939",
author="Lay, W.e.",
volume="1939",
number="",
pages="-",
abstract="In this bibliography there are about 240 items arranged in chronological order. These data relate to four subjects: the road, the vehicles, the tires, and brakes, various characteristics of these four subjects are discussed, such as skidding, surfaces, hill climbing, tractive resistance, air resistance, and so forth.<p />",
language="",
issn="0096-1027",
doi="",
url="http://dx.doi.org/"
}