Constructing sonified haptic line graphs for the blind student: first steps. - Rameshsharma Ramloll; Wai Yu; Stephen A. Brewster; Beate Riedel; Mike Burton; Gisela Dimigen (ASSETS, 2000)

Using Non-speech Sounds to Improve Access to 2D Tabular Numerical Information for Visually Impaired Users. - Rameshsharma Ramloll; Stephen A. Brewster; Wai Yu; Beate Riedel (BCS HCI/IHM, 2001)

Exploring computer-generated line graphs through virtual touch. - Wai Yu; Rameshsharma Ramloll; Stephen A. Brewster; Beate Riedel (ISSPA, 2001)