Semantic wiki development: any XWiki related papers?

Hi all! First of all, let me introduce myself. My name is Julien Bourdon and I study at the University of Sheffield. My research team currently works on a semantic wiki implementation for the UK Environment Agency knowledge management system. We chose XWiki as a wiki layer since it's open-source, well maintained, written in Java and used in corporate environments. However, when we ran through the source code, we could not find any specified documentation. We checked the DevGuide on xwiki.org but the javadoc looks empty. Do you know where we could find any precise documentation about XWiki general architecture, any papers presented in conference or whatever? Any language would be fine since our team is international (I mean even in French since I'm French). Thanks a lot! -- _ _ Julien Bourdon (o)(o)--. http://purl.org/net/JulienBourdon \../ ( ) self isAddictedTo:(#Squeak&#linux) m\/m--m'`--. ^true