@article{ref1,
title="Explanation of and countermeasures against traffic congestion",
journal="IATSS research",
year="1989",
author="Koshi, M. and Akahane, Hirokazu and Kuwabara, M",
volume="13",
number="2",
pages="53-63",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0386-1112",
doi="",
url="http://dx.doi.org/"
}