@article{ref1,
title="Traffic Conflict Identification of Road Accident Blackspots",
journal="Zhongguo Gonglu Xuebao",
year="2000",
author="Zhou, Weimin and Luo, S",
volume="13",
number="1",
pages="81-86",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="1001-7372",
doi="",
url="http://dx.doi.org/"
}