Participation in Community Systems: Indications for Design. - Ahmad John Reeves; Patrick G. T. Healey (Digital Cities, 2003)

Modelling participation in virtual environments. - Ahmad John Reeves (2005)

Interaction Design and Usability of Learning Spaces in 3D Multi-user Virtual Worlds. - Shailey Minocha; Ahmad John Reeves (HWID, 2009)