Development of a Mobile Tourist Information System for People with Functional Limitations: User Behaviour Concept and Specification of Content Requirements. - Sascha M. Sommer; Marion Wiethoff; Sari Valjakka; Dionisis D. Kehagias; Dimitrios Tzovaras (ICCHP, 2006)

Specification of Information Needs for the Development of a Mobile Communication Platform to Support Mobility of People with Functional Limitations. - Marion Wiethoff; Sascha M. Sommer; Sari Valjakka; Karel Van Isacker; Dionisis D. Kehagias; Evangelos Bekiaris (HCI (6), 2007)