@article{ref1,
title="Time and Gasoline Consumption in Motor Truck Operation as Affected by the Weight and Power of Vehicles and the Rise and Fall in Highways",
journal="Operational research quarterly (1950)",
year="1951",
author="Saal, Carl C.",
volume="2",
number="3",
pages="44-44",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="1473-284X",
doi="",
url="http://dx.doi.org/"
}