/usr/share/sgml/docbook/dtd/4.0/catalog is in docbook 4.5-4ubuntu1.
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-- Catalog data for DocBook V4.0 ........................................ --
-- File docbook.cat ..................................................... --
-- Please direct all questions, bug reports, or suggestions for
changes to the docbook@lists.oasis-open.org mailing list. For more
information, see http://www.oasis-open.org/.
--
-- This is the catalog data file for Version 3.1 of the DocBook DTD.
It is provided as a convenience in building your own catalog files.
You need not use the filenames listed here, and need not use the
filename method of identifying storage objects at all. See the
documentation for detailed information on the files associated with
the DocBook DTD. See SGML Open Technical Resolution 9401 for
detailed information on supplying and using catalog data.
--
-- ...................................................................... --
-- SGML declaration associated with DocBook ............................. --
-- disabled, see README.docbook.dcl --
-- DTDDECL "-//OASIS//DTD DocBook V4.0//EN" "docbook.dcl" --
-- ...................................................................... --
-- Prefer PUBID to SYSID ................................................ --
OVERRIDE YES
-- ...................................................................... --
-- DocBook driver file .................................................. --
PUBLIC "-//OASIS//DTD DocBook V4.0//EN" "docbook.dtd"
-- ...................................................................... --
-- DocBook modules ...................................................... --
PUBLIC "-//USA-DOD//DTD Table Model 951010//EN" "cals-tbl.dtd"
PUBLIC "-//OASIS//ELEMENTS DocBook Information Pool V4.0//EN" "dbpool.mod"
PUBLIC "-//OASIS//ELEMENTS DocBook Document Hierarchy V4.0//EN" "dbhier.mod"
PUBLIC "-//OASIS//ENTITIES DocBook Additional General Entities V4.0//EN" "dbgenent.mod"
PUBLIC "-//OASIS//ENTITIES DocBook Notations V4.0//EN" "dbnotn.mod"
PUBLIC "-//OASIS//ENTITIES DocBook Character Entities V4.0//EN" "dbcent.mod"
-- End of catalog data for DocBook V4.0 ................................. --
-- ...................................................................... --
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