Stihi N, Djellab N. Approximation of the steady state system state distribution of the M/G/1 retrial queue with impatient customers. YUJOR [Internet]. 2012 Sep. 1 [cited 2025 Aug. 26];22(2):285-96. Available from: https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/344