Sandeep Bhadra Yingdong Lu Mark S. Squillante Optimal capacity planning in stochastic loss networks with time-varying workloads. 227-238 2007 conf/sigmetrics/2007 SIGMETRICS http://doi.acm.org/10.1145/1254882.1254909 db/conf/sigmetrics/sigmetrics2007.html#BhadraLS07