Transient Queue Size Distribution Solution of Geom / G / 1 Queue with Feedback-A Recursive Method. - Chuanyi Luo; Yinghui Tang; Cailiang Li (J. Syst. Sci. Complex., 2009)

Geom/G 1, G 2/1/1 repairable Erlang loss system with catastrophe and second optional service. - Yinghui Tang; Miaomiao Yu; Cailiang Li (J. Syst. Sci. Complex., 2011)