PUBLIC   "-//GNOME//DTD DocBook PNG Variant V1.0//EN" 
         "/usr/share/sgml/gnome/png-support.dtd"
PUBLIC   "-//GNOME//DTD DocBook PNG Variant V1.1//EN" 
         "/usr/share/sgml/gnome/png-support-3.1.dtd"
CATALOG  "/usr/share/sgml/CATALOG.docbook_3"
-- CATALOG  "/usr/share/sgml/CATALOG.docbk30" --