Yossi Azar Uriel Feige Iftah Gamzu Thomas Moscibroda Prasad Raghavendra Buffer management for colored packets with deadlines. 319-327 2009 SPAA http://doi.acm.org/10.1145/1583991.1584068 conf/spaa/2009 db/conf/spaa/spaa2009.html#AzarFGMR09