Goce Trajcevski Hui Ding Peter Scheuermann Isabel F. Cruz BORA: Routing and Aggregation for Distributed Processing of Spatio-Temporal Range Queries. 36-43 2007 conf/mdm/2007 MDM http://dx.doi.org/10.1109/MDM.2007.15 db/conf/mdm/mdm2007.html#TrajcevskiDSC07