Ke Zuo Dongmin Hu Quanyuan Wu A Bandwidth Efficient Overlay for Information Exchange in Pervasive Computing Environment. 524-527 2008 CSSE (3) http://dx.doi.org/10.1109/CSSE.2008.1233 conf/csse/2008-3 db/conf/csse/csse2008-3.html#ZuoHW08