D. Qu Brain Vetter Feiyi Wang R. Narayan Shyhtsun Felix Wu Y. Frank Jou Fengmin Gong C. Sargor Statistical Anomaly Detection for Link-State Routing Protocols. 62-70 1998 ICNP http://dlib.computer.org/conferen/icnp/8988/pdf/89880062.pdf db/conf/icnp/icnp1998.html#QuVWNWJGS98