TY JOUR TI OPTIMIZATION OF QUEUING SYSTEMS UNDER SIGNIFICANT LOADS KW queuing system KW failure probability KW relative throughput KW optimization KW service channels JO Vestnik of Astrakhan State Technical University. Series: Management, computer science and informatics AU Afonin, V.V. AU Nikulin, V.V. PY 2020 IS 2020 PB Astrakhan State Technical University