ACM - affordances
Audrey Girouard
Matthew Ernst
Exploring the effects of size on deformable user interfaces
Interacting with mobile devices via VoiceOver
Design and Development of Deformable Prototypes
blindsquare
unleashing braille over touch screen mobile phones, Proceedings of the 13th IFIP TC 13 international conference on Human-computer interaction, September 05-09, 2011, Lisbon, Portugal
Towards identifying distinguishable tactons for use with mobile devices