Some orbit size properties in the M/M/1//N retrial queue. - Velika I. Dragieva (QTNA, 2011)

Number of retrials in a Finite Source retrial Queue with Unreliable Server. - Velika I. Dragieva (Asia Pac. J. Oper. Res., 2014)

Two-Way Communication M/M/1 Retrial Queue with Server-Orbit Interaction. - Velika I. Dragieva; Tuan Phung-Duc (QTNA, 2016)

Steady state analysis of the M/G/1//N queue with orbit of blocked customers. - Velika I. Dragieva (Ann. Oper. Res., 2016)

Two-Way Communication M/M/1//N Retrial Queue. - Velika I. Dragieva; Tuan Phung-Duc (ASMTA, 2017)

Queueing Analysis of Cognitive Radio Networks with Finite Number of Secondary Users. - Velika I. Dragieva; Tuan Phung-Duc (ASMTA, 2019)

A finite-source M/G/1 retrial queue with outgoing calls. - Velika I. Dragieva; Tuan Phung-Duc (Ann. Oper. Res., 2020)