[docbook-apps] changing output of chars in

[Isabel Hofherr]

Hi,
How can I change the character output of <quote></quote>? 
So far the quotation marks appear as '&#x22;' ("). My intention is to let
them look like '&#x201C;' (") and ''&#x201C;(").
I couldn't find the proper position in the docbook files to manage
customization.
-> charmap.groff.xsl ?
 
I would appreciate any help,
Thanks
Isabel Hofherr