Measuring the Sense of Presence and its Relations to Fear of Heights in Virtual Environments. - Holger Regenbrecht; Thomas Schubert 001; Frank Friedmann (Int. J. Hum. Comput. Interact., 1998)

Embodied Presence in Virtual Environments. - Thomas Schubert 001; Frank Friedmann; Holger Regenbrecht (Visual Representations and Interpretations, 1999)

The Experience of Presence: Factor Analytic Insights. - Thomas Schubert 001; Frank Friedmann; Holger Regenbrecht (Presence Teleoperators Virtual Environ., 2001)