Bhuvan Bamba Ling Liu James Caverlee Vaibhav Padliya Mudhakar Srivatsa Tushar Bansal Mahesh Palekar Joseph Patrao Suiyang Li Aameek Singh DSphere: A Source-Centric Approach to Crawling, Indexing and Searching the World Wide Web. 1515-1516 2007 conf/icde/2007 ICDE http://dx.doi.org/10.1109/ICDE.2007.369060 db/conf/icde/icde2007.html#BambaLCPSBPPLS07