Pixel-independent Ray Tracing. - Geoff Wyvill; Callan Jay; Dean McRobie (Computer Graphics, 1995)

Free Form Modeling with History. - Geoff Wyvill; Dean McRobie; Chris Haig; Craig McNaughton (Int. J. Shape Model., 1996)

Modeling with Features. - Geoff Wyvill; Dean McRobie; Michael A. Gigante (IEEE Computer Graphics and Applications, 1997)