Mark Sifer Yardena Peres Yoëlle S. Maarek Browsing and Editing XML Schema Documents with an Interactive Editor. 97-111 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2822&spage=97 2003 conf/dnis/2003 DNIS db/conf/dnis/dnis2003.html#SiferPM03