Marko Brunzel Myra Spiliopoulou Discovering Groups of Sibling Terms from Web Documents with XTREEM-SG. 126-155 2008 11 J. Data Semantics http://dx.doi.org/10.1007/978-3-540-92148-6_5 journals/jods/2008-11 db/journals/jods/jods11.html#BrunzelS08