<?xml version="1.0"?>
<dblp>
<article key="journals/fac/LieberherrHX94" mdate="2003-12-01">
<author>Karl J. Lieberherr</author>
<author>Walter L. H&#252;rsch</author>
<author>Cun Xiao</author>
<title>Object-Extending Class Transformations.</title>
<pages>391-416</pages>
<year>1994</year>
<volume>6</volume>
<journal>Formal Asp. Comput.</journal>
<number>4</number>
<url>db/journals/fac/fac6.html#LieberherrHX94</url>
</article>
</dblp>
