Do Young Eun Ness B. Shroff Analyzing a Two-Stage Queueing System with Many Point Process Arrivals at Upstream Queue. 23-43 2004 48 Queueing Syst. 1-2 http://dx.doi.org/10.1023/B:QUES.0000039886.54866.c5 db/journals/questa/questa48.html#EunS04