George Apostolopoulos Roch Guérin Sanjay Kamat Satish K. Tripathi Quality of Service Based Routing: A Performance Perspective. 17-28 1998 SIGCOMM http://doi.acm.org/10.1145/285237.285251 db/conf/sigcomm/sigcomm1998.html#ApostolopoulosGKT98