Universal Access in Human-Computer Interaction. Access to Today's Technologies 9th International Conference, UAHCI 2015, Held as Part of HCI International 2015, Los Angeles, CA, USA, August 2-7, 2015, Proceedings, Part I - Antona, Margherita.; Antona, Margherita.; Stephanidis, Constantine.; Stephanidis, Constantine. (Springer International Publishing : Imprint: Springer, 2015)