Applying Docbook/XSL stylesheet directly to docbook.xml document?

Has any one an example style sheet fragment which shows how the
Docbook/XML to HTML/XHTML XSL style sheet can be added to the
Docbook/XML document itself?
The idea is to add the XSL transformation style sheet as style sheet
reference to the Docbook/XML document that a browser like Seamonkey
can view it directly.

Olga
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