Panagiotis Antonellis Christos Makris Nikos Tsirakis Utilizing XML Clustering for Efficient XML Data Management on P2P Networks. 68-82 2009 DEXA http://dx.doi.org/10.1007/978-3-642-03573-9_6 conf/dexa/2009 db/conf/dexa/dexa2009.html#AntonellisMT09