Universal Access in Human-Computer Interaction. Aging and Assistive Environments 8th International Conference, UAHCI 2014, Held as Part of HCI International 2014, Heraklion, Crete, Greece, June 22-27, 2014, Proceedings, Part III - Stephanidis, Constantine; Antona, Margherita (Springer International Publishing : Imprint: Springer, 2014)