1> /usr/share/xml/docbook/xml/4.1.2/dbpoolx.mod 2> http://www.oasis-open.org/docbook/xml/4.1.2/dbcentx.mod 3> /usr/share/xml/docbook/xml/4.1.2/dbpoolx.mod 4> http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd 5>