<?xml version="1.0"?>
<dblp>
<article key="journals/fac/HeX03" mdate="2004-02-25">
<author>Jifeng He</author>
<author>Qiwen Xu</author>
<title>Advanced Features of Duration Calculus and Their Applications in Sequential Hybrid Programs.</title>
<pages>84-99</pages>
<year>2003</year>
<volume>15</volume>
<journal>Formal Asp. Comput.</journal>
<number>1</number>
<ee>http://dx.doi.org/10.1007/s001650300001</ee>
<url>db/journals/fac/fac15.html#HeX03</url>
</article>
</dblp>
