Aaron D. Jaggard Vijay Ramachandran Robustness of Class-Based Path-Vector Systems. 84-93 2004 conf/icnp/2004 ICNP http://csdl.computer.org/comp/proceedings/icnp/2004/2161/00/21610084abs.htm db/conf/icnp/icnp2004.html#JaggardR04