Restriction of cardinality

Hello,

I like to do the following:

Import the Dublin Core XML schema, i.e.

   http://dublincore.org/schemas/xmls/qdc/2003/04/02/dc.xsd

into my own namespace. Here I want to write a schema that allow 
documents of the form:

<root xmlns="my_own_namespace">
   <dc:title>xxxx</dc:title>
   <dc:some_other_dc_tag>yy</dc:some_other_dc_tag>
   <dc:more_dc_tags>zz</dc:more_dc_tags>
   cdata
</root>

The import thing is that I want at least one occurrence of dc:title and 
it may be placed anywhere in the nodeset.

Any help will be appreciated!

Thank you,

--Anders
-- 
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Anders Sønderberg Mortensen <sondberg@indexdata.dk>
Indexdata <http://www.indexdata.dk/>
Phone: +45 3341 0105, Fax: +45 3341 0101
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