Retieving parts of documents using XPath on a collection

[Erick Brie`re]

(Perhaps my question concerns more Xpath than Xindice itself... ?)
Is there a way to get only nodes without their descendant(s) ?
I test with these two documents:
$ cat doc1.xml
<?xml version="1.0"?>
<AAA>
 <BBB/>
 <CCC value="doc1">
   <DDD/>
   <EEE/>
 </CCC>
 <FFF/>
</AAA> 
$ 
$ cat doc2.xml
<?xml version="1.0"?>
<AAA>
 <BBB/>
 <CCC value="doc2">
   <DDD/>
   <EEE/>
 </CCC>
 <FFF/>
</AAA> 

I'd like to get the list of "CCC values", without having the "DDD" and 
"EEE" nodes:

$ xindice xpath -c /db/test -q '/AAA/CCC'
<?xml version="1.0"?>
<CCC value="doc1" xmlns:src="http://xml.apache.org/xindice/Query"; src:col="/db/test" 
src:key="338c319e664de474000000eedabd3e89">
   <DDD />
   <EEE />
</CCC>
<?xml version="1.0"?>
<CCC value="doc2" xmlns:src="http://xml.apache.org/xindice/Query"; src:col="/db/test" 
src:key="338c319e664de474000000eedabd99ef">
   <DDD />
   <EEE />
</CCC>
What should be the QUERY for having this:
$ xindice xpath -c /db/test -q QUERY
<?xml version="1.0"?>
<CCC value="doc1" xmlns:src="http://xml.apache.org/xindice/Query"; src:col="/db/test" 
src:key="338c319e664de474000000eedabd3e89">
</CCC>
<?xml version="1.0"?>
<CCC value="doc2" xmlns:src="http://xml.apache.org/xindice/Query"; src:col="/db/test" 
src:key="338c319e664de474000000eedabd99ef">
</CCC>
NB: probably i didn't anderstand wel the tutorial 
http://www.zvon.org/xxl/XPathTutorial/General/examples.html ...

Thanks,
Erick.