Delay analysis of an M / G / 1 / K priority queueing system with push-out scheme. Lee, Yutae; Choi, Bong Dae; Kim, Bara; Sung, Dan Keun — 2007 Mathematical Problems in Engineering
Transient analysis of a queue with queue-length dependent map and its application to SS7 network. Choi, Bong Dae; Choi, Sung Ho; Sung, Dan Keun; Lee, Tae-Hee; Song, Kyu-Seog — 1999 Journal of Applied Mathematics and Stochastic Analysis