Honghao Wang Yingwu Zhu Yiming Hu To Unify Structured and Unstructured P2P Systems. 2005 conf/ipps/2005 IPDPS http://doi.ieeecomputersociety.org/10.1109/IPDPS.2005.436 db/conf/ipps/ipdps2005.html#WangZH05