Spatial Information Theory. Cognitive and Computational Foundations of Geographic Information Science International Conference COSIT'99 Stade, Germany, August 25-29, 1999 Proceedings Freksa Christian Heftet / 1999 / Engelsk
Geographic Information Science Second International Conference, GIScience 2002, Boulder, CO, USA, September 25-28, 2002. Proceedings Egenhofer Max J. Heftet / 2002 / Engelsk
Spatial Information Theory International Conference, COSIT 2005, Ellicottville, NY, USA, September 14-18, 2005, Proceedings Cohn Anthony G. Heftet / 2005 / Engelsk
