Kumar BK, Thanikachalam A, Krishnan RN, Sankar R. Oscillating Service System Between Conventional and Retrial Queues for Impatient Customers with Switch-off and Close-down Periods. Stat [Internet]. 2023 Jan. 1 [cited 2025 Mar. 31];83(1):81-122. Available from: https://rivista-statistica.unibo.it/article/view/14206