Universal Access in Human-Computer Interaction. Design Methods, Tools, and Interaction Techniques for eInclusion 7th International Conference, UAHCI 2013, Held as Part of HCI International 2013, Las Vegas, NV, USA, July 21-26, 2013, Proceedings, Part I - Stephanidis, Constantine; Antona, Margherita (Springer Berlin Heidelberg : Imprint: Springer, 2013)