Enabling Location-Aware Pervasive Computing Applications for the Edlerly. - Abdelsalam Helal; Bryon Winkler; Choonhwa Lee; Youssef Kaddoura; Lisa Ran; Carlos Giraldo; Sree Kuchibhotla; William C. Mann (PerCom, 2003)

Drishti: An Integrated Indoor/Outdoor Blind Navigation System and Service. - Lisa Ran; Sumi Helal; Steve Moore (PerCom, 2004)