http://www.sagehill.net/docbookxsl/index.html DocBook XSL Online Book from Bob Stayton

http://sourceforge.net/projects/docbook/ The XSLT stylesheets

http://docbook.sourceforge.net/release/xsl/current/doc/ - Reference of the XSLT stylesheet parameters

Syntax Highlighting with XSLTHL Reference of the XSLT stylesheet parameters

http://www.docbook.org/tdg/en/html/docbook.html Reference of the DocBook parameters

http://xmlgraphics.apache.org/fop/ The Apache FOP Distribution