Real-Time Hand and Head Tracking for Virtual Environments Using Infrared Beacons. - Klaus Dorfmüller; Hanno Wirth (CAPTECH, 1998)

An Optical Tracking System for VR/AR-Applications. - Klaus Dorfmüller (EGVE, 1999)

Robust tracking for augmented reality using retroreflective markers. - Klaus Dorfmüller (Comput. Graph., 1999)