Lichun Li Yang Ji Tao Ma Lanzhi Gu Chunhong Zhang Locality-Aware Peer-to-Peer SIP. 295-302 2008 ICPADS http://dx.doi.org/10.1109/ICPADS.2008.92 conf/icpads/2008 db/conf/icpads/icpads2008.html#LiJMGZ08