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In many different application fields the amount and importance of spatio-temporal data (i.e., temporally and/ or spatially qualified data) is increasing in last years and users need new solutions for their management. In  a framework for modeling spatio-temporal data in relational databases has been proposed. The model is based on the notions of temporal, spatial, and spatio-temporal granularities. Once data have been modeled, they must be queried through query languages that are also abledoi:10.1145/2245276.2245282 dblp:conf/sac/PozzaniC12 fatcat:oii3urzg35dmhojamqmqh6gzxe