Digital Sign System for Indoor Wayfinding for the Visually Impaired. - Bosco S. Tjan; Paul J. Beckmann; Rudrava Roy; Nicholas A. Giudice; Gordon E. Legge (CVPR Workshops, 2005)

Spatial learning and navigation using a virtual verbal display. - Nicholas A. Giudice; Jonathan Z. Bakdash; Gordon E. Legge; Rudrava Roy (ACM Trans. Appl. Percept., 2010)