On a BMAP=G=1 Retrial System with Two Types of Search of Customers from the Orbit.- Reliability Analysis of a Two-Server Heterogeneous Unreliable Queueing System with a Threshold Control Policy.- Heavy Outgoing Call Asymptotics for MMPP=M=1=1 Retrial Queue with Two-Way Communication.- Two-Server Queueing System with Unreliable Servers and Markovian Arrival Process.- On the Total Customers' Capacity in Multi-Server Queues.- On the Problems of Queues in Mixed Type Queuing Systems with Random Quantity of Sources and Size-Limited Queues.- Analysis of Perishable Queueing-Inventory System with Positive Service Time and (S - 1, S) Replenishment Policy.- Comparative Analysis of Methods of Residual and Elapsed Service Time in the Study of the Closed Retrial Queuing System M/GI/1//N with Collision of the Customers and Unreliable Server.- The Renewal-based Asymptotics and Accelerated Estimation of a System with Random Volume Customers.- Research of Heterogeneous Queueing System SMjM(n)j1.- OnSteady-State Analysis of [MjMjmjm + n]-Type Retrial Queueing Systems.- Analysis of Queueing Tandem with Feedback by the Method of Limiting Decomposition.- Combination of Queueing Systems of Different Types with Common Buffer: A Theoretical Treatment.- Minimization of Packet Loss Probability in Network with Fractal.- Optimization of Pipelining and Data Processing.- Performance Simulation of Non-Reliable Servers in Finite-Source Cognitive Radio Networks with Collision.- Research of Mathematical Model of Insurance Company in the Form of Queueing System in a Random Environment.- State Reduction in Analysis of a Tandem Queueing System with Correlated Arrivals.- Analyzing of Licensed Shared Access Scheme Model with Service Bit Rate Degradation in 3GPP Network.- Two-way Communication M/M/1/1 Queue with Server-Orbit Interaction and Feedback of Outgoing Retrial Calls.- The Comparison of Structured Modeling and Simulation Modeling of Queueing Systems.- A Sweep Method for Calculating MultichannelQueueing Systems.- Modeling End-to-End Business Processes of a Telecom Company with a BCMP Queueing Network.- The Multi-product Newsboy Problem with Price-depended Demand and Fast Moving Items.- Two-sided Truncations for a Class of Continuous-time Markov Chains.- Construction of the Stability Indicator of Wireless D2D Connection in a Case of Fractal RandomWalk of Devices.- Algorithm of Balance Equations Decomposition and Investigation of Poisson Flows in Jackson Networks.- Retrial Queue M/G/1 with Impatient Calls under Heavy Load Condition.- Analysis of the queueing system with resources and signals.- Inventory Management System with On/O_ Control of Input Product Flow.- Semi-Analytical Methods for Complex Optimization of Non-Markov Queueing Networks.