Virtual odometry from visual flow. - Markus Lappe; Harald Frenz; Thomas Buehrmann; Marina Kolesnik (Human Vision and Electronic Imaging, 2005)

Estimation of travel distance from visual motion in virtual environments. - Harald Frenz; Markus Lappe; Marina Kolesnik; Thomas Bührmann (ACM Trans. Appl. Percept., 2007)

A Universal Virtual Locomotion System: Supporting Generic Redirected Walking and Dynamic Passive Haptics within Legacy 3D Graphics Applications. - Frank Steinicke; Timo Ropinski; Gerd Bruder; Klaus H. Hinrichs; Harald Frenz; Markus Lappe (VR, 2008)

Analyses of human sensitivity to redirected walking. - Frank Steinicke; Gerd Bruder; Jason Jerald; Harald Frenz; Markus Lappe (VRST, 2008)

Real Walking through Virtual Environments by Redirection Techniques. - Frank Steinicke; Gerd Bruder; Klaus H. Hinrichs; Jason Jerald; Harald Frenz; Markus Lappe (J. Virtual Real. Broadcast., 2009)

Estimation of Detection Thresholds for Redirected Walking Techniques. - Frank Steinicke; Gerd Bruder; Jason Jerald; Harald Frenz; Markus Lappe (IEEE Trans. Vis. Comput. Graph., 2010)

Exploiting perceptual limitations and illusions to support walking through virtual environments in confined physical spaces. - Gerd Bruder; Frank Steinicke; Benjamin Bolte; Phil Wieland; Harald Frenz; Markus Lappe (Displays, 2013)