Adapting VRML 2.0 for Immersive Use. - Randy Stiles; Sandeep Tewari; Mihir Mehta (VRML, 1997)

Adapting VRML for Free-Form Immersed Manipulation. - Randy Stiles; Sandeep Tewari; Mihir Mehta; Laurie McCarthy (VRML, 1998)