Changhoon Kim Alexandre Gerber Carsten Lund Dan Pei Subhabrata Sen Scalable VPN routing via relaying. 61-72 2008 SIGMETRICS http://doi.acm.org/10.1145/1375457.1375465 conf/sigmetrics/2008 db/conf/sigmetrics/sigmetrics2008.html#KimGLPS08