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The BMAP/PH/N retrial queue with Markovian flow of breakdowns
Kim, Chesoong, (2008)
A BMAP/PH/N SYSTEM WITH IMPATIENT REPEATED CALLS
KLIMENOK, VALENTINA I., (2007)
Multi-server queueing system with a generalized phase-type service time distribution as a model of call center with a call-back option
Dudin, Aleksandr, (2016)