Trust in recommender systems.
In: IUI '05: Proceedings of the 10th international conference on Intelligent user interfaces, Seiten 167-174. ACM Press, New York, NY, USA, 2005.
John O'Donovan und Barry Smyth.
[BibTeX] 

Combating Web Spam with TrustRank..
In: VLDB, Seiten 576-587. 2004.
Zoltán Gyöngyi, Hector Garcia-Molina und Jan Pedersen.
[doi]  [BibTeX]