M. Egenhofer and M. Dube. Surrounds in Partitions. ACM SIGSPATIAL GIS 2014 — 22nd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, Dallas, TX Y. Huang, M. Schneider, M. Gertz, J. Krumm, and J. Sankaranarayanan (eds.), (in press). Abstract: SurroundsĀ is a topological relation that can exist between two regions or between collections of read more Surrounds in Partitions