Ralph Kopperman Prakash Panangaden Michael B. Smyth Dieter Spreen Julian Webster 04351 Abstracts Collection - Spatial Representation: Discrete vs. Continuous Computational Models. 2005 conf/dagstuhl/2005P4351 Spatial Representation http://drops.dagstuhl.de/opus/volltexte/2005/174 db/conf/dagstuhl/P4351.html#KoppermanPSSW05a