books.google.it - Spatial trajectories have been bringing the unprecedented wealth to a variety of research communities. A spatial trajectory records the paths of a variety of moving objects, such as people who log their travel routes with GPS trajectories. The field of moving objects related research has become extremely...http://books.google.it/books/about/Computing_with_spatial_trajectories.html?hl=it&id=JShQJF23xBgC&utm_source=gb-gplus-shareComputing with spatial trajectories
