Finite-time expected present value of operating costs until ruin in a Cox risk model with periodic observation. - Ye Teng; Zhimin Zhang 009 (Appl. Math. Comput., 2023)

On a time-changed Lévy risk model with capital injections and periodic observation. - Ye Teng; Zhimin Zhang 009 (Math. Comput. Simul., 2023)