B. Krause, R. Jäschke, A. Hotho, und G. Stumme. HT '08: Proceedings of the Nineteenth ACM Conference on Hypertext and Hypermedia, Seite 157-166. New York, NY, USA, ACM, (2008)
C. Hayes, P. Avesani, und S. Veeramachaneni. ITC-IRST Technical Report. http://sra. itc. it/people/hayes/pubs/06/hayes-ijcai07-tech-report. pdf, (2006)
C. Marlow, M. Naaman, D. Boyd, und M. Davis. HYPERTEXT '06: Proceedings of the seventeenth conference on Hypertext and hypermedia, Seite 31--40. New York, NY, USA, ACM, (2006)
M. Ames, und M. Naaman. CHI '07: Proceedings of the SIGCHI conference on Human factors in computing systems, Seite 971--980. New York, NY, USA, ACM, (2007)
R. Lambiotte, und M. Ausloos. International Conference on Computational Science, Volume 3993 von Lecture Notes in Computer Science, Seite 1114--1117. Springer, (2006)