1. Semiology of Graphics, Diagrams, Networks, Maps;Bertin,1983
2. The Visual Display of Quantitative Information;Tufte,1983
3. When is a picture worth a thousand words? Allocation of modalities in multimedia communication;Hovy,1990
4. Speaking with computers: a multimodal approach;Lefebvre,1993
5. 3D Or Not 3D: ‘More is Better’ Or ‘Less is More’?;Mullet,1995