Kai Großjohann Norbert Fuhr Daniel Effing Sascha Kriewel A User Interface for XML Document Retrieval. 166-170 2002 conf/gi/2002-1 GI Jahrestagung db/conf/gi/gi2002-1.html#GrossjohannFEK02 http://subs.emis.de/LNI/Proceedings/Proceedings19/article417.html