Ronaldo A. Ferreira Mehmet Koyutürk Suresh Jagannathan Ananth Grama Semantic indexing in structured peer-to-peer networks. 64-77 2008 68 J. Parallel Distrib. Comput. 1 http://dx.doi.org/10.1016/j.jpdc.2007.06.003 db/journals/jpdc/jpdc68.html#FerreiraKJG08