Costas Courcoubetis Antonis Dimakis Martin I. Reiman Providing Bandwidth Guarantees over a Best-effort Network: Call-admission and Pricing. 459-467 2001 INFOCOM http://www.ieee-infocom.org/2001/paper/231.pdf db/conf/infocom/infocom2001-1.html#CourcoubetisDR01