Cristian Lumezanu Randolph Baden Neil Spring Bobby Bhattacharjee Triangle Inequality and Routing Policy Violations in the Internet. 45-54 2009 PAM http://dx.doi.org/10.1007/978-3-642-00975-4_5 conf/pam/2009 db/conf/pam/pam2009.html#LumezanuBSB09