Some special features of finite-source retrial queues with collisions, an unreliable server and impatient customers in the orbit.- Improved Priority Scheme for Unreliable Queueing System.- Simulation analysis in cognitive radio networks with unreliability and abandonment.- A Retrial Queueing System with Processor Sharing.- Multi-level MMPP as a Model of Fractal Traffic.- Asymptotic analysis of intensity of Poisson flows assembly.- On multiserver state-dependent retrial queues operating in stationary regime.- Reducing of service process dimension for a general-type multichannel network in heavy traffic.- Central Limit Theorem for an M/M/1/1 Retrial Queue with Unreliable Server and Two-Way Communication.- Three-Server Queue with Consultations by Main Server with a Buffer at the Main Server.- Simulation of railway marshalling yards based on four-phase queuing systems.- Numerical Methods to Analyses of Queuing Systems with Instantaneous Feedback, Positive Server Setup Time and Impatient Calls.-  Waiting time asymptotic analysis of a M/M/1 retrial queueing system under two types of limiting conditions.- On a Single Server Queueing Inventory System with Common Life Time for Inventoried Items.- Resource Queueing System for Analysis of Network Slicing Performance with QoS-based Isolation.- Infinite markings method in queueing systems with the infinite variance of service time.- Analysis of the queuing systems with processor sharing service discipline and random serving rate coefficientsnts.- Asymptotic-diffusion analysis of multiserver retrial queueing system with priority customers.- Stability condition of a multi-class modified Erlang system.- Methods for analyzing slicing technology in 5G wireless network described as queueing system with unlimited buffer and retrial group.- The two-dimensional Output Process of Retrial Queue with Two-Way Communication.- Analysis of retrial queueing system M/G/1 with impatient customers, collisions and unreliable server using simulation.- A method for solving stationary equations for priority time-sharing service process in random environment.- Virtual Waiting Time in Single-Server Queueing Model M/G/1 with Unreliable Server and Catastrophes.- A Queueing System with Probabilistic Joining Strategy for Priority Customers.- Analysis of Closed Unreliable Queueing Networks with Batch Service.- On an MMAP/(PH,PH)/1/(∞,N) Queueing-Inventory System.- Resource Sharing Model with Minimum Allocation for the Performance Analysis of Network Slicing.- Analysis of a MAP/PH(1), PH(2)/2 Production Inventory System under the Bernoulli Vacation Scheme.- Spectral Analysis of a Discrete-Time Queueing Model with N-Policy on an Accelerated Service.- Analysis of a Single Server Queue with Interdependence of Arrival and Service Processes - a Semi-Markov Approach.