@article{ref1,
title="Area licensing scheme in Singapore",
journal="Transport and communications bulletin for Asia and the Pacific",
year="1986",
author="Yee, Joshua",
volume="",
number="58",
pages="17-22",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0252-4392",
doi="",
url="http://dx.doi.org/"
}