@article{ref1,
title="Travel demand management in Seoul, Korea",
journal="IATSS research",
year="1998",
author="Kum, K-J and Choi, D-S and Kim, J-H",
volume="22",
number="1",
pages="33-39",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0386-1112",
doi="",
url="http://dx.doi.org/"
}