A Group-Based Trust Metric for P2P Networks: Protection against Sybil Attack and Collusion.

Wen Ji Shoubao Yang Bo Chen A Group-Based Trust Metric for P2P Networks: Protection against Sybil Attack and Collusion. 90-93 2008 CSSE (3) http://dx.doi.org/10.1109/CSSE.2008.505 conf/csse/2008-3 db/conf/csse/csse2008-3.html#JiYC08