@article{ref1,
title="Health Monitoring of Long-Span Bridges",
journal="Zhongguo Gonglu Xuebao",
year="2000",
author="Qin, Q",
volume="13",
number="2",
pages="37-42",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="1001-7372",
doi="",
url="http://dx.doi.org/"
}