Toolglass and magic lenses
Proceedings of the 20th annual conference on Computer graphics and interactive techniques - SIGGRAPH ’93
Ken Pier
Maureen C. Stone
William Buxton
Eric A. Bier
Physical Handles at the Interactive Surface: Exploring Tangibility and Its Benefits
Digital tape drawing
DisplayPointers: Seamless Cross-device Interactions
Affordances for Manipulation of Physical Versus Digital Media on Interactive Surfaces
Designing a Physical Aid to Support Active Reading on Tablets
Side views