Brumelle, Shelby L. - In: Management Science 19 (1973) 7, pp. 773-777
The wait in a GI/M/k queue is bounded above (stochastically) by the wait in an associated GI/M/1 queue. The analysis of the single server queue is considerably easier than that of the k-server queue, and also the bounds developed for single server queues by J. F. C. Kingman and Kneale T....