<catalog xmlns="urn:oasis:names:tc:entity:xmlns:xml:catalog" prefer="public">
<!-- ............................................................ -->
<!-- XML Catalog for Math ML .................................... -->
<!-- File catalog.xml ........................................... -->
    <public publicId="-//OpenOffice.org//DTD Modified W3C MathML 1.01//EN" uri="dtd/office_mathml2.dtd"/>
    <public publicId="-//W3C//DTD MathML 2.0//EN" uri="dtd/mathml2.dtd"/>        
    <system systemId="mathml2.dtd" uri="dtd/mathml2.dtd"/>
    <system systemId="http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg.dtd" uri="dtd/xhtml-math-svg.dtd"/>    
</catalog>