4Sutcliffe, A. G., & De Angeli, A. (2005). Assessing interaction styles in web user interfaces. In M. F. Costabile, & F. Paterno (Eds.), Proceedings Human Computer Interaction Interact 2005 (Rome) (pp.405-417). Berlin, Germany: Springer-Verlag.
5Tractinsky, N. (1997). Aesthetics and apparent usability Empirically assessing cultural and methodological issues In S. Pemberton (Ed), Proceedings of the CHI ' 97 (pp 115-122). New York, USA: ACM.
6Tractinsky, N., Shoval-Katz, A., & Ikar, D. (2000). What is beautiful is usable. Interaction computting, 13(2), 127-145.
7Tractinsky, N., & Hassenzahl, M. (2005). Arguing for aesthetics in Human-Computer interaction. In i-com. Zeitschrift fur interaktive und kooperative Medien: Vol. 4: Issue 3 (pp.66-68). Oldenbourg, Germany: Munchen D.
8Tractinsky, N., & Zmiri, D. (2006). Exploring attributes of Skins as potential antecedents of emotion in HCI. In P. Fishwick (Ed), Aesthetic Computing(pp. 405-421). Cambridge, UK: MIT Press.
9UPA (Usability Professionals Association). (2006). Usability Body of Knowledge. Retrieved July 4, 2010, from http://www.usabilitybok.org/glossary.
10von Wilamowitz-MoeUendorff, M., Hassenzahl, M., & Platz, A. (2006). Dynamics of user experience: How the perceived quality of mobile phones changes over time. In User Experience - Towards a unified view, Workshop at the 4th Nordic Conference on Human-Computer Interaction. Retrieved July 4, 2010 from http://issuu.com/hassenzahl/docs/wilamowitz_nordichi06.