1. World explorer: Visualizing aggregate data from unstructured text in geo-referenced collections;Ahern,2007
2. Creating polygon models for spatial clusters;Akdag,2014
3. The quickhull algorithm for convex hulls;Barber;ACM Transactions on Mathematical Software (TOMS),1996
4. Cities and complexity: Understanding cities with cellular automata, agent-based models, and fractals;Batty,2007
5. Measuring the complexity of polygonal objects;Brinkhoff,1995