Richens, P. and Trinder, M. (1999) Design Participation through the Internet: A Case Study.

Richens, P. (1999) Painting a Perfect Picture.

Richens, P. (1998) Project Websites. In: UNSPECIFIED.

Richens, P. (1997) Beyond Photorealism.

Richens, P. (1997) Computer-aided Art Direction. In: UNSPECIFIED.

Richens, P. (1997) Image Processing for Urban Scale Environmental Modelling. In: UNSPECIFIED.

Richens, P. (1997) Image Processing for Urban Scale Environmental Modelling. In: UNSPECIFIED.

Richens, P. (1996) CAD and the Internet. In: UNSPECIFIED.

Richens, P. (1996) Computer Representation Techniques for Historic Buildings. In: UNSPECIFIED.

Richens, P. (1996) Developments in Object Technology. In: UNSPECIFIED.

Richens, P. and Schofield, S. (1996) Interactive Image Editing (PCT Patent Application). In: UNSPECIFIED.

Richens, P. and Schofield, S. (1995) Interactive Computer Rendering.

Richens, P. (1995) Interactive computer rendering.

Richens, P. (1994) CAD Research at the Martin Centre.

Richens, P. (1994) Does Knowledge really Help? In: UNSPECIFIED.

Richens, P. (1993) 3D Design. In: UNSPECIFIED.

Richens, P. (1992) CAD Systems.

Richens, P. (1992) The Next Ten Years. In: UNSPECIFIED.

Richens, P. (1991) 3D Interface. In: UNSPECIFIED.

Richens, P. (1991) The ABCs of CAD - What You really Need to Know when You Buy a System.

Richens, P. and Evans, M. (1991) GDS and AutoCAD � An Independent Perspective. In: UNSPECIFIED.

Richens, P. (1991) Hazards of Computing. In: UNSPECIFIED.

Richens, P. (1990) Computer Aided Design into the 90�s. In: UNSPECIFIED.

Richens, P. (1990) Micro CAD. In: UNSPECIFIED.

Richens, P. (1990) Trends in Architectural CAD. In: UNSPECIFIED.

Richens, P. (1989) Desktop Jury.

Richens, P. (1989) MicroCAD Software Evaluated. In: UNSPECIFIED.

Richens, P. (1988) Automation of Drafting and Building Modelling � Historical Review of Commercial Development since the Seventies. In: UNSPECIFIED.

Richens, P. (1988) GDS Past, GDS in the Future. In: UNSPECIFIED.

Richens, P. (1984) Experiences in Building CAD. In: UNSPECIFIED.

Richens, P. (1983) Dis-integrated Models for Building Design. In: UNSPECIFIED.

Richens, P. (1983) Extending the Drawing Database into other Applications. In: UNSPECIFIED.

Richens, P. (1980) The Design of a General Drafting System. In: UNSPECIFIED.

Richens, P. (1980) GDS User�s Manual. In: UNSPECIFIED.

Richens, P. (1978) The OXSYS System for the Design of Buildings. In: UNSPECIFIED.

Richens, P. (1977) OXSYS BDS Basic Principles. In: UNSPECIFIED.

Richens, P. (1976) New Developments in the OXSYS System. In: UNSPECIFIED.

Richens, P. (1975) Geometry and Numbers in Building Systems. In: UNSPECIFIED.

Richens, P. (1974) Proposal for a Combined Drafting and Scheduling System. In: UNSPECIFIED.

Richens, P. (1974) Summary of OXSYS Commands. In: UNSPECIFIED.