Characterization theorem on losses in $GI^X/GI^Y/1/n$ queues
  In this paper, we prove a characterization theorem on the number of losses during a busy period in $GI^X/GI^Y/1/n$ queueing systems, in which interarrival time distribution belongs to the class NWUE. 
Vyacheslav M. Abramov
math.PR