N. Diakopoulos, und D. Shamma. Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, Seite 1195--1198. New York, NY, USA, ACM, (2010)
M. Montagnuolo, M. Ferri, und A. Messina. HT '09: Proceedings of the 20th ACM conference on Hypertext and hypermedia, Seite 83--88. New York, NY, USA, ACM, (2009)
M. Montagnuolo, M. Ferri, und A. Messina. HT '09: Proceedings of the 20th ACM conference on Hypertext and hypermedia, Seite 83--88. New York, NY, USA, ACM, (2009)