@article{oai:nagoya.repo.nii.ac.jp:00005321,
 author = {Ikezaki, Masakazu and Mukai, Naoto and Watanabe, Toyohide},
 journal = {21st International Conference on Data Engineering Workshops, 05-08 April 2005},
 month = {Apr},
 note = {In this paper, we propose a data model to manage dynamic aspects of geographic information. In our model, a geographic change is represented as an event. Three relations are defined on events: they are is-a relation, part-of relation, and event-driven relation. We implemented a prototype system, and confirmed that our model is adaptable to searching dynamic aspects of geographic information based on real world phenomena.},
 pages = {1249--1249},
 title = {Event-based Specification for Controlling Spatio-temporal Changes of Geographic situation},
 year = {2005}
}