B. Sigurbj�rnsson, und R. van Zwol. WWW '08: Proceeding of the 17th international conference on World
Wide Web, Seite 327--336. New York, NY, USA, ACM, (2008)
B. Sigurbjörnsson, und R. van Zwol. WWW '08: Proceeding of the 17th international conference on World Wide Web, Seite 327--336. New York, NY, USA, ACM, (2008)