1. Venolia, G.D., et al.: Supporting Email Workflow. Microsoft Research, 2001–2088 (2001)
2. Rigas, D., Alharbi, S.: Graphical Browsing of Email Data: A Usability Based Comparative Study. Journal of Computer Science 5(10), 690–703 (2009)
3. Alharbi, S., Rigas, D.: LinearVis II: Towards More Usable Email Browsing. IAENG International Journal of Computer Science, 36 (2009)
4. Alharbi, S., Rigas, D.: Email Threads: A Comparative Evaluation of Textual, Graphical and Multimodal Approaches (2009)
5. Michelle, Q.W.B., Allison, W., Allan, K.: Guidelines for using multiple views in information visualization. In: Proceedings of the Working Conference on Advanced Visual Interfaces. ACM Press, New York (2000)