Analysis of waiting time of customers in an M/M/c/m + c queueing system with customer interjections
Wenqing WU, Qilin KE, Yinghui TANG, Lin CHEN
Operations Research Transactions . 2023, (3): 109 -120 .  DOI: 10.15960/j.cnki.issn.1007-6093.2023.03.008