On the Busy Period in a Finite-Source Retrial Queue with Outgoing Calls -- An Algorithmic Approach for the Analysis of Finite-Source M/GI/1 Retrial Queueing Systems with Collisions and Server Subject to Breakdowns and Repairs -- Available throughput of transport connection with selective repeat mode in the loaded data transmission path -- Artificial Regeneration Based Regenerative Estimation of Multiserver System with Multiple Vacations Policy -- On combining stochastic and deterministic models -- Estimation of the Probability Density Parameters of the Interval Duration between Events in Correlated Semi-synchronous Event Flow of the Second Order by the Method of Moments -- Special retrial queues with state-dependent input rate -- Redundant Queueing System with Hysteresis Backup Server Connection Strategy -- The laws of conservation of flows in acyclic queueing networks -- Performance Analysis and Optimal Control for Queueing System with a Reserve Unreliable Server Pool -- Study of a service process by a loop algorithm by means of a stopped random walk -- Resource queueing system MMP P (2,ν)