<?xml version="1.0"?>
<dblp>
<article key="journals/fuin/ZhangF97" mdate="2003-11-27">
<author>Yan Zhang</author>
<author>Norman Y. Foo</author>
<title>Deriving Invariants and Constraints from Action Theories.</title>
<pages>109-123</pages>
<year>1997</year>
<volume>30</volume>
<journal>Fundam. Inform.</journal>
<number>1</number>
<url>db/journals/fuin/fuin30.html#ZhangF97</url>
</article>
</dblp>
