@article{ref1,
title="The single lane merging problem with mixed cars and trucks",
journal="Transportation research",
year="1969",
author="Weiss, George H.",
volume="3",
number="2",
pages="195-199",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0041-1647",
doi="10.1016/0041-1647(69)90151-8",
url="http://dx.doi.org/10.1016/0041-1647(69)90151-8"
}