The PDF files of the individual papers of the first two International Symposia (Utrecht 2006 and Portsmouth 2008) can be downloaded from their respective pages under Activities / Past Events.
Since 2010 the proceedings of the symposia have been published by Springer as part of their Lecture Notes in Geoinformation and Cartography Series. They can be found here:
- Proceedings of the 5th International Symposium, Ghent University, 2-5 December 2014: Springer website
- Proceedings of the 4th International Symposium, Eötvös Loránd University, Budapest, 28-29 June 2012: Springer website
- Proceedings of the 3rd International Symposium, University of Texas at Arlington (UTA), 10-13 October 2010: Springer website