Parallel Processing for Terrain Analysis in GIS: Visibility as a Case Study. - David B. Kidner; Philip J. Rallings; J. Andrew Ware (GeoInformatica, 1997)

Parallel Distributed Viewshed Analysis. - J. Andrew Ware; David B. Kidner; Philip J. Rallings (ACM-GIS, 1998)

Optimal Site Selection for GIS: From Sight to Sound. - Philip J. Rallings; David B. Kidner; J. Andrew Ware (PDPTA, 1999)