Geospatial Cluster Tessellation Through the Complete Order- k Voronoi Diagrams. - Ickjai Lee; Reece Pershouse; Kyungmi Lee (COSIT, 2007)

What-if Emergency Management System: A Generalized Voronoi Diagram Approach. - Ickjai Lee; Reece Pershouse; Peter Phillips 001; Chris Christensen 002 (PAISI, 2007)

What-If Emergency Response Through Higher Order Voronoi Diagrams. - Ickjai Lee; Reece Pershouse; Peter Phillips 001; Kyungmi Lee; Christopher Torpelund-Bruin (Security Informatics, 2010)