The following publications are possibly variants of this publication:
- PC-based control unit for a head-mounted operating microscope for augmented-reality visualization in surgical navigationMichael Figl, Wolfgang Birkfellner, Franz Watzinger, Felix Wanschitz, Johann Hummel, Rudolf A. Hanel, Rolf Ewers, Helmar Bergmann. miigp 2002: [doi]
- PC-Based Control Unit for a Head Mounted Operating Microscope for Augmented Reality Visualization in Surgical NavigationMichael Figl, Wolfgang Birkfellner, Franz Watzinger, Felix Wanschitz, Johann Hummel, Rudolf Hanel, Rolf Ewers, Helmar Bergmann. miccai 2002: 44-51 [doi]
- Calibration of a head-mounted operating microscope for augmented reality visualization in CASWolfgang Birkfellner, Michael Figl, Klaus Huber, Franz Watzinger, Felix Wanschitz, Rudolf Hanel, Johann Hummel, Rolf Ewers, Helmar Bergmann. cars 2001: 154-159
- Design and automatic calibration of a head mounted operating binocular for augmented reality applications in computer-aided surgeryMichael Figl, Christopher Ede, Wolfgang Birkfellner, Johann Hummel, Rudolf Hanel, Helmar Bergmann. miigp 2005: [doi]