The Back-End of a Two-Layer Model for a Federated National Datastore for Academic Research VOs that Integrates EGEE Data Management. - Brian A. Coghlan; John Walsh 001; Stephen Childs; Geoff Quigley; David O'Callaghan; Gabriele Pierantoni; John Ryan; Neil Simon; Keith Rochford (J. Grid Comput., 2010)