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An M-G-1 Retrial Queueing System with Two-Phase Service and Preemptive Resume
Kumar, B.Krishna, (2002)
Pseudo-concservation law for discrete-time multi-queue systems with priority disciplines
Takahashi, Yoshitaka, (1995)
On multiserver feedback retrial queues with balking and control retrial rate
Kumar, B.Krishna, (2006)