ACM - affordances
Yang Li
James A. Landay
Zhiwei Guan
Xiangshi Ren
Guozhong Dai
Proceedings of the 5th international conference on Multimodal interfaces - ICMI ’03
Spatial interpretation of domain objects integrated into a freeform electronic whiteboard
Flatland
Palette
new directions for designing interactive systems, ACM Press/Addison-Wesley Publishing Co
A perceptually-supported sketch editor
MultiPoint
Ubiquitous Sketching for Social Media