Digital Government: Reviving the Newhall Simulation Model to Understand the Patterns and Trends of Soil Climate Regimes and Drought Events. - William J. Waltman; Steve Goddard; Stephen E. Reichenbach; Gang Gu; Ian J. Cottingham; Jeffrey S. Peake; Tsegaye Tadesse; Sherri K. Harms; Jitender S. Deogun (DG.O, 2004)

Digital Government: New Tools to Define Terroirs and Viticultural Areas in the Northern Great Plains. - William J. Waltman; Steve Goddard; P. E. Read; Stephen E. Reichenbach; Ian J. Cottingham; Jeffrey S. Peake (DG.O, 2004)