Shishir Bharathi Ann L. Chervenak Design of a Scalable Peer-to-Peer Information System Using the GT4 Index Service. 636-648 2007 conf/ccgrid/2007 CCGRID http://dx.doi.org/10.1109/CCGRID.2007.38 db/conf/ccgrid/ccgrid2007.html#BharathiC07