docbook-xsl-ns 1.75.2+dfsg-5 (i386 binary) in ubuntu precise

 These are modular XSL stylesheets for processing documents composed
 with DocBook 5 XML and its derivatives. Unlike in docbook-xsl the DocBook
 namespace prefix has been added to element names in pattern matches and
 expressions. However processing of DocBook 4 documents is also possible
 with these stylesheets. For a more detailed explanation read
 http://www.sagehill.net/docbookxsl/ProcesingDb5.html.
 .
 The stylesheets provide XSLT transformations for (X)HTML, WordML, HTML Help,
 JavaHelp, Man page (nroff), Website, Eclipse Platform Help file and Formatting
 Object (FO) output. The latter can be further processed to a number of print
 formats using FOP or TeX-based tools.
 .
 The stylesheets are modular in the sense that you can extend and, to some
 extent, customize them. The documentation is included in a separate package.