ACM - affordances
Jamie Zigelbaum
Hiroshi Ishii
Adam Kumpf
Alejandro Vazquez
A comparison of techniques for multi-display reaching
Pick-and-drop
The TAC paradigm: specifying tangible user interfaces
On tangible user interfaces, humans and spatiality
Communicating emotion through a haptic link: Design space and methodology
Design of Affordances for Direct Manipulation of Digital Information in Ubiquitous Computing Scenarios