Three dimensional spatial memory and learning in real and virtual environments. - Charles M. Oman; Wayne L. Shebilske; Jason T. Richards; Travis C. Tubré; Andrew C. Beall; Alan Natapoff (Spatial Cogn. Comput., 2000)

Postural Stability During Treadmill Locomotion as a Function of the Visual Polarity and Rotation of a Three-Dimensional Virtual Environment. - Jason T. Richards; Ajitkumar P. Mulavara; Jacob J. Bloomberg (Presence Teleoperators Virtual Environ., 2004)