Shawky, A.I., and M.S. El-Paoumy. “The Truncated Hyper-Poisson Queues: Hk Ma,b C N With Balking, Reneging and General Bulk Service Rule”. Yugoslav Journal of Operations Research 18, no. 1 (March 1, 2008): 23–36. Accessed December 17, 2025. https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/232.