@article{ref1,
title="Study on the Severest Real Ground Motion for Seismic Design and Analysis",
journal="Acta seismologica sinica. English edition",
year="2003",
author="Xie, LL and Zhai, CH",
volume="16",
number="3",
pages="260-",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="1000-9116",
doi="",
url="http://dx.doi.org/"
}