Michael F. Worboys, Kathleen Hornsby. From Objects to Events: GEM, the Geospatial Event Model. In Max J. Egenhofer, Christian Freksa, Harvey J. Miller, editors, Geographic Information Science, Third International Conference, GIScience 2004, Adelphi, MD, USA, October 20-23, 2004, Proceedings. Volume 3234 of Lecture Notes in Computer Science, pages 327-344, Springer, 2004. [doi]
Abstract is missing.